United States. Radio Research Laboratory, Harvard University. Records of the Radio Research Laboratory : an inventory

Harvard University Archives

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Harvard University

©President and Fellows of Harvard College, 2005

Descriptive Summary

Repository: Harvard University Archives
Call No.: UAV 728
Creator: United States. Radio Research Laboratory, Harvard University.
Title: Records of the Radio Research Laboratory, 1942-1946
Quantity: 51.5 cubic feet (150 boxes and 2 volumes)
Abstract: The Radio Research Laboratory (RRL) was established in 1942 to develop countermeasures to radar. These records document research projects. Topics include radar, radar countermeasures, microwaves, research methodology, and the relationship of federally-sponsored research to the industrial sector.

Note

This document last updated 2007 March 12.

Selected Search Terms

These papers have been indexed in the International Catalog of Sources for History of Physics and Allied Sciences (ICOS) using the following terms. Those seeking related materials should search under these terms.

Terman, Frederick Emmons, 1900-1982.

Harvard University. Radio Research Laboratory -- Administration.

United States. Office of Scientific Research and Development.

Microwaves -- Research.

Radar -- Research -- 20th century.

Science and state -- United States -- 20th century.

World War, 1939-1945 -- Research grants.

Minutes.

Clippings.

Photographs.

Technical reports.

These records were processed by staff in the Harvard University Archives probably prior to 1985. The finding aid was encoded at the American Institute of Physics and revised to conform to Harvard University guidelines.

History of the Radio Research Laboratory

The Radio Research Laboratory (RRL) was established in 1942 to develop countermeasures to radar. These countermeasures were simultaneously under development at the Massachusetts Institute of Technology (MIT). First located at MIT , the RRL soon moved to Harvard where it was operated by the University during World War II under contract with the U.S. Office of Scientific Research and Development.

Scope and Contents of Collection

These records document research projects, including the development of countermeasure prototypes ; operations research, including the development of probability models ; establishment of production guidelines and contracts; as well as the administration of the Laboratory itself. Topics include radar, radar countermeasures, microwaves, research methodology, and the relationship of federally-sponsored research to the industrial sector. The greatest volume of material covers the administration of the laboratory.

Access to Collection :

Personnel and student records are restricted for a period of 80 years from the date of their creation. Contact the reference staff in the Harvard University Archives for details.

Organization of Collection

Administrative Records

General Administrative Records

Meeting Minutes and Chronological Files

Administrative Reports

Instructions ... for Alterations to the Biological Laboratory

Records Concerning Field Stations and Branch Laboratories

Photographs of Field Operations

Records Concerning Demobilization and Laboratory History

Press Accounts

Human Resources

Personnel Records

Medical Records

Time Sheets

Forms

Research Records

Technical Reports

Invention Disclosure Cards

Images of Equipment, Graphs, and Charts

Flying Dutchman Target-Complexity Indicator System Sound Recordings

Container List

Series: Administrative Records ca. 44.4 cubic feet (135 containers and 2 volumes)
Scope and Content: This series documents the administration of the Radio Research Laboratory.
Arrangement: The Administrative Records are in 13 subseries:
- General Administrative Records
- Meeting Minutes and Chronological Files
- Administrative Reports
- Instructions ... for Alterations to the Biological Laboratory
- Records Concerning Field Stations and Branch Laboratories
- Photographs of Field Operations
- Records Concerning Demobilization and Laboratory History
- Press Accounts
- Human Resources
- Personnel Records
- Medical Records
- Time Sheets
- Forms
- UAV 728.95.1 General Administrative Records, 1942-1946 6.9 cubic feet (20 containers)
  Scope and Content: This series documents the administration of the Radio Research Laboratory (RRL). These files were maintained chiefly by the Laboratory Director, Frederick E. Terman (FET). The topics covered in the files include management of the Laboratory, personnel, budgets, field stations, publicity, committees, relations with the U. S. Navy, relations with the U. S. Army, relations with the Office of Scientific Research and Development (OSRD), research projects, transition of devices from experimental to production phases, and demobilization at the end of the war. Field stations included the American British Laboratory (ABL) and the Florosa Station Laboratory (FSL).
  
  Arrangement: In alphabetical order by topic.
  - Box 1 Archive Material
  - Box 1 Index by Drawers to Dr. Terman's file
  - Box 1 A
  - Box 1 Alford
  - Box 1 A/J General
  - Box 1 A.W. Mayer Company
  - Box 1 A/J Practices Panel
  - Box 1 A/J Training Committee
  - Box 1 Airport-Airplane
  - Box 1 Antenna File, May 1, 1945-July 31, 1945
  - Box 1 Antennas (esp. Group M) Dec. 1, 1942-Feb. 28, 1945
  - Box 1 Antenna Coordination Committee
  - Box 1 Army, Arl
  - Box 1 Army, Air Force: General (Jackson, Marviner, Sandretto)
  - Box 1 Army Air Forces: Liaison
  - Box 1 Army Air Service Command Liaison Office
  - Box 1 Army Air Technical Service Command
  - Box 1 Army Electronics Training Center (Col. Fox)
  - Box 1 Army Organization
  - Box 1 Army Signal Corps: Liaison
  - Box 2 Army Signal Corps: General
  - Box 2 Army -Signal Corps: Liaison Documents
  - Box 2 Army Tests
  - Box 2 Army War Department (Bowles, Frank Lewis, et al)
  - Box 2 B
  - Box 2 Bell Laboratories
  - Box 2 Black, K.C.
  - Box 2 Breed
  - Box 2 Britain: Equipment Requested by British
  - Box 2 British, General
  - Box 2 British: Letters to Cockburn, Norton, Davies, & others
  - Box 2 British Radar Mission (Sir Robert Watson-Watt)
  - Box 2 Budget Information
  - Box 3 RRL [Radio Research Lab] Business Reports (2)
  - Box 3 Byrne
  - Box 3 C
  - Box 3 Cahill
  - Box 3 Caufield
  - Box 3 Chinn
  - Box 3 C.B.S.: General
  - Box 3 Communications Jamming
  - Box 3 Consultant, Advisor Projects
  - Box 3 Cullum
  - Box 3 D
  - Box 3 F.E. Terman, Diarv-A.D.R.D.E.
  - Box 3 D, FET Admiralty Signal School
  - Box 3 Diary, FET: Bruneval Raid
  - Box 4 Diary, F.E. Terman: Dover Area
  - Box 4 Diary, F.E. Terman: T.R.E.-Dr. Cockburn
  - Box 4 Diary, FET-Dallas Hill
  - Box 4 Diary, F.E. Terman: DWDW (Christ Church)
  - Box 4 Diary, F.E. Terman: G.E.C.
  - Box 4 Diary, German Radar
  - Box 4 Diary, F.E. Terman: Haslemere (A.S.E.)
  - Box 4 Diary, Items
  - Box 4 Diary, Marconi
  - Box 4 Diary, FET: Libyan Campaign
  - Box 4 Diary, Navigational Systems
  - Box 4 Diary, FET: Scharnhorst & Gneisenau
  - Box 4 Diary, F.E. Terman: T.R.E.-Anti-jamming
  - Box 4 Diary, FET: Wide Band Amplifiers, etc.
  - Box 4 Diary, FET: Miscellaneous
  - Box 4 Diary, FET: A.J. Blackout
  - Box 4 Diary, FET: T.R.E.-Booker
  - Box 4 Diary, FET: RCM Board (British)
  - Box 4 Diary, FET: Window
  - Box 4 Document Room
  - Box 4 Doersam
  - Box 4 Draft
  - Box 4 Dyer
  - Box 4 E
  - Box 4 Editorial Committee
  - Box 4 Elliott
  - Box 4 Elliott 6/13/42 Report Only
  - Box 4 Enemy Radar: FET Files
  - Box 4 Enemy Radar: Japanese
  - Box 5 Editorial Committee (RRL)
  - Box 5 England, FET trip to
  - Box 5 Executive Committee
  - Box 5 Executive Committee: General
  - Box 5 External Distribution Lists
  - Box 5 External Relations Committee
  - Box 5 F
  - Box 5 Failey Field Applications Committee (PBOSRD)
  - Box 5 Field Station: ABL-Admin. Files-Terman Correspondence
  - Box 5 Field Station: ABL-CBS Matter
  - Box 5 Field Stations: ABL Communication Channels
  - Box 5 Field Stations: ABL-Chase, John P.
  - Box 5 Field Stations: ABL-Cullum (trips to England)
  - Box 5 Field Stations: ABL General, March 1945-
  - Box 6 Field Stations: ABL General Feb. 1945
  - Box 6 Field Stations: ABL General Jan. 1945
  - Box 6 Field Stations: RBL General Nov.-Dec. 1944
  - Box 6 Field Stations: ABL General Sept.-Oct. 1944
  - Box 6 Field Stations: ABL General
  - Box 6 Field Stations: ABL General 5/1/44-6/30/44
  - Box 6 Field Stations: ABL General 1/l/44-4/30/44
  - Box 7 Field Stations: ABL-General 9/13/43-12/31/43
  - Box 7 Field Stations: ABL-General 5/-/43-9/13/43
  - Box 7 Field Stations: ABL-Howard, Col.
  - Box 7 Field Stations: ABL-Manpower
  - Box 7 Field Stations: ABL-Petticoat (From Peterson's File)
  - Box 7 Field Stations: ABL-Petticoat Mission
  - Box 7 Field Stations: ABL-Progress Reports (informal)
  - Box 7 [Field Stations:] ABL England, Reports of Men Located There
  - Box 7 Field Stations: AEL Cables to (east) Jan. 1945
  - Box 8 Field Stations: ABL Cables from (west) Jan. 1, 1945
  - Box 8 FSL: ABL Steering Committee Meetings
  - Box 8 Field Stations: FSL and General
  - Box 8 Field Stations: Florosa 1943
  - Box 8 Field Testing
  - Box 8 Film Committee
  - Box 8 Floor Plans 4/6/45
  - Box 8 Fubini
  - Box 8 G
  - Box 8 Goldmark
  - Box 8 H
  - Box 8 Harrison
  - Box 8 Harvard: General
  - Box 8 Harvard: Roof Laboratory
  - Box 9 Hickman
  - Box 9 Hotchkiss and/or FSL
  - Box 9 I
  - Box 9 Informal Liaison Conference Meetings: Miscellaneous Papers
  - Box 9 RRL Instrument Committee: Gen'l.
  - Box 9 RRL Instrument Committee: Minutes
  - Box 9 Invention Disclosures: Patent Correspondence File
  - Box 9 Invention Disclosures: General (see Barrett file for master File)
  - Box 9 Invention Disclosures: Reports
  - Box 9 J
  - Box 9 RRL-Jamming-Alvarez
  - Box 9 Joint Committee on New Weapons and Equipment
  - Box 9 K
  - Box 9 L
  - Box 9 Leet
  - Box 9 M
  - Box 9 Memos to Secretaries
  - Box 9 Microwave Committee
  - Box 9 Microwave Committee-Papers from FET desk
  - Box 9 Microwave Committee Minutes
  - Box 9 N
  - Box 9 Navy, BuAer
  - Box 9 Navy, Bureau of Ships: Finch, Furer, Granum
  - Box 10 Navy, Finch
  - Box 10 Navy, General
  - Box 10 Navy, Navy Liaison Office
  - Box 10 Navy, NLO-Documents
  - Box 10 Navy, NRL
  - Box 10 Organization Book (F.E. Terman)
  - Box 10 Navy, Organization
  - Box 10 Navy, Tests
  - Box 10 Noise
  - Box 10 O
  - Box 10 Oliphant
  - Box 10 Operational Information (misc.)
  - Box 11 Organization Charts (rough drafts of)
  - Box 11 Organization Book (Inactive material from)
  - Box 11 OSRD: Program for Training Women
  - Box 11 OSRD Contract (Material re)
  - Box 11 ORS: Summaries of Activities (operational)
  - Box 11 OSRD Div. 6.1-Underwater Sound Lab
  - Box 11 OSRD Div. 13 "Electrical Communications" Chaffee
  - Box 11 OSRD: Radiation Lab Relations
  - Box 11 OSRD Division 14.1 "Model Shop Committee"
  - Box 11 OSRD Div. 15-Instructions on Contract
  - Box 11 OSRD Div. 15 HQ-General to March 1943
  - Box 11 OSRD Div. 15 HQ-Miscellaneous Apr. '43 to date
  - Box 11 OSRD Div. 15 HQ Suits-Terman Corres.
  - Box 11 OSRD Div. 15 HQ Suits' Correspondence Copies (for FET information)
  - Box 12 OSRD Div. 15-Documents
  - Box 12 OSRD Div. 15-General (Radio Coordination Committee)
  - Box 12 Div. 15 NDRC Review
  - Box 12 OSRD Div. 15: Special Problems
  - Box 12 OSRD Div. 15: Airborne Instruments Lab
  - Box 12 OSRD Div. 15: Bell Labs
  - Box 12 OSRD Div. 15: Fed. Tel. & Radio
  - Box 12 OSRD Div. 15: General Radio
  - Box 12 OEMsr-759 OSRD Div. 15 Ohio State
  - Box 12 OSRD Div. 15 RCA
  - Box 12 OSRD Div. 15 Westinghouse (see also: Equipt.-A-500)
  - Box 12 OSRD London Office
  - Box 12 OSRD NDRC-Compton, Waterman, Trump, et.al.
  - Box 12 OSRD Murray, Stewart, Wilson, Bush, Travers, etc.
  - Box 12 OSRD RRL Technical Aide
  - Box 13 P
  - Box 13 Personnel Papers to be Scanned
  - Box 13 Personnel General
  - Box 13 Personnel Papers taken from FET desk
  - Box 13 Personnel, Committee on
  - Box 13 Committee on Personnel-Minutes
  - Box 13 Personnel Committee
  - Box 13 Power Necessary to Jam a Radar
  - Box 13 X-S Band Jamming
  - Box 13 Pratt, R.W.
  - Box 13 Procurement Statistics
  - Box 13 Procurement and Transportation Problems
  - Box 13 Procurement Problems: 11/9/43-4/l/44
  - Box 13 Product Engineering Group Y
  - Box 13 Production Supervisor Operations (Sub-contracting survey) Dunleavey, Brooks
  - Box 14 Project Committee: General (2 folders)
  - Box 14 Project Committee Agendas and Minutes
  - Box 14 Summary of Project Committee Minutes-Mts. 1 to 60 incl.
  - Box 14 Project Numbers-Cross Reference List
  - Box 14 Propagation Committee (OSRD Div. 14 & 15-Burrows, Beverage, et.al)
  - Box 14 Publishing
  - Box 14 Publicity & Final Reports-General
  - Box 14 Publicity & Final Rpts.: Baxter (RRL)
  - Box 14 Publicity & Final Rpts.: Declassification
  - Box 14 Publicity & Final Rpts.: Div. 15 & OSRD Rules, etc.
  - Box 14 Publicity & Final Rpts.: Document Digest
  - Box 14 Publicity & Final Rpts.: Journal Articles
  - Box 14 Publicity & Final Rpts.: Monograph
  - Box 14 Publicity & Final Rpts.: Summary Technical Reports
  - Box 14 Publicity & Final Rpts.: Div. 15 Press Releases & History (Stokely)
  - Box 14 Publicity & Final Rpts.: RRL Press Release
  - Box 14 Publicity & Final. Rpts.: Signal Corps Press Release
  - Box 14 Publicity & Final Rpts.: Navy Press Release
  - Box 14 Publicity: For RRL Individuals
  - Box 14 Press Releases: Newspaper and Harvard Alumni Bulletin Press Releases
  - Box 14 R
  - Box 14 Raymond
  - Box 14 Radar RCM-Dr. Terman's File
  - Box 15 RCM Correspondence, Non-Technical
  - Box 15 RCM Committee, misc. corresp.
  - Box 15 [Recapitulation of] JX/CM-Summary of Minutes of Procedures 7/14/42-1/6/43
  - Box 15 RCM Programs, etc.
  - Box 15 Receiver Design Comm. Minutes
  - Box 15 Reedy
  - Box 15 Reference Letters by FET
  - Box 15 Research Board for National Security
  - Box 15 Sah
  - Box 15 Safety
  - Box 15 Safety Committee
  - Box 15 Salary Policy & Increases
  - Box 15 Salisbury
  - Box 15 Security
  - Box 15 Security: Top Secret
  - Box 15 Seminar Attendance
  - Box 15 Shop (also see Elliott)
  - Box 15 Sinclair
  - Box 15 Serrell
  - Box 15 Standards Committee
  - Box 15 Subcontractors: Delco
  - Box 15 Subcontractors: Galvin
  - Box 15 Subcontractors: Miscellaneous
  - Box 16 T
  - Box 16 FET-Staff Talks
  - Box 16 Talks (by FET)-Notes
  - Box 16 Technical Notes: General (2)
  - Box 16 Technical Observers-General
  - Box 16 Tech. Program, Miscellaneous
  - Box 16 Tech. Program Field Test Division
  - Box 16 Tech. Program Instrument Committee
  - Box 16 Tech. Program Receivers, Misc.
  - Box 16 Tech. Program Receiver Committee Minutes
  - Box 16 Tech. Program Systems A/J
  - Box 16 Tech. Program Test Equipment Committee
  - Box 16 Tech. Program Transmitters
  - Box 16 T.O. China, Burma, India (MacQuivey, Pettit)
  - Box 17 T.O. Central Pacific, Kaisel
  - Box 17 T.O.-MTO (Raymond, Barnes, Cohen, Robbins, Foster, Sinclair, Caufield, Buss, Avery, Raburn)
  - Box 17 T.O. Southwest Pacific (Moran, Whitby, Cahill, Sard, Deakins, Harman)
  - Box 17 T.O. Southwest Pacific Theater
  - Box 17 Terminations Office Reports
  - Box 17 Termination, General
  - Box 17 Termination, Basic Papers
  - Box 17 Termination, Business
  - Box 17 Termin., Cullum
  - Box 18 Termination, Personnel
  - Box 18 Termination, Project Control
  - Box 18 Termination, Technical
  - Box 18 Training Program for RRL Employees
  - Box 18 Training Programs & Courses
  - Box 18 Transmitter Design Committee Minutes
  - Box 18 Transition
  - Box 18 Transition Sub-contracts
  - Box 18 Transition Crash Programs & Procedures
  - Box 18 Transition, Equipment Allocations
  - Box 18 Transition, Progress Report Material, TMR List (fr. MacQuivey)
  - Box 18 Transition, Service Requests, Procedure for Handling
  - Box 18 Transmitter Charts (RRL Portable Jammers)
  - Box 19 Travel, General (Incl. Authorization, correspondence, & instructions)
  - Box 19 Return Travel-Misc. 1945
  - Box 19 Tubes, Radiation Laboratory
  - Box 19 Tubes, 1429 ct
  - Box 19 Tubes, 1280 ct
  - Box 19 Tubes, Memos Concerning Aug. 1942-Dec. 31, 1943
  - Box 19 U
  - Box 19 Urgency Ratings-within RRL
  - Box 19 V
  - Box 19 VTDC, General
  - Box 19 VTCD RCM Tube Committee, 1-2-3-4 Stage Data
  - Box 19 VTDC RCM Tube Committee, Letters & Memos
  - Box 20 VTDC, Dow Memos, etc.
  - Box 20 VTDC Minutes, Various Meetings
  - Box 20 VTDC Minutes, Radio Coord. Applic. Tech. and Coord. Comm.
  - Box 20 Tubes, Memos Concerning, Jan. 1944 -
  - Box 20 Vacuum Tubes (X-band)-Malter
  - Box 20 Vacuum Tubes: Liaison
  - Box 20 Villard
  - Box 20 Visitors, Notes on
  - Box 20 Visitors, Procedures Relating to
  - Box 20 W
  - Box 20 Whipple (see also G-500)
  - Box 20 XYZ
- UAV 728.95.2 Meeting Minutes and Chronological Files, 1942-1946 2 cubic feet (6 containers)
  Scope and Content: This series documents the administration of the Radio Research Laboratory (RRL). These files were maintained by the Laboratory Director, Frederick E. Terman, and Terman's aide, Garrison Villard, Jr. Minutes record staff and committee meetings within the RRL as well as meetings of Division 15 of the National Defense Research Committee.
  - Box 1 Navy 1943-Dec. 1944
  - Box 1 13 Al-OSRM
  - Box 1 January 1945
  - Box 1 February 1945
  - Box 1 March 1945
  - Box 1 April 1945
  - Box 1 May 1945
  - Box 1 June 1945
  - Box 1 July 1945
  - Box 2 August 1945
  - Box 2 October 1945
  - Box 2 November 1945
  - Box 2 December & January 1945-46
  - Box 2 Management Committee
  - Box 3 Minutes of the Meetings of the Management Committee
  - Box 3 NDRC-Division 15-Minutes of Meetings 1942-43
  - Box 3 Field Application Committee-Minutes & Assoc. Papers
  - Box 4 NDRC-Division 15-Minutes of Meetings 1944
  - Box 4 NDRC-Division 15-Minutes of Meetings 1945
  - Box 4 Memos issued from Director's Office
  - Box 5 Staff Meeting Minutes-FET
  - Box 5 Datebook 1942
  - Box 5 Datebook 1943
  - Box 5 Datebook 1944
  - Box 5 Datebook 1945
  - Box 6 Project Committee Meeting Minutes, May 5, 1943 to Aug. 16, 1945
- UAV 728.95.5 Administrative Reports, 1942-1946 2.3 cubic feet (7 containers)
  Scope and Content: This subseries documents the administration of the activities of the Radio Research Laboratory. Reports are non-technical progress reports, accounting, liaisons, and project reports.
  - Box 1 Scope: Copy File
  - Box 1 Final Property Accounting (excluding Construction and Alteration Work)
  - Box 1 Final Property Accounting: Alteration and Construction Work
  - Box 1 Final Property Accounting: American British Laboratory
  - Box 1 Personnel Directories, Sept. 1944 to April 1946
  - Box 1 Business Office Reports and Charts, number 1-31
  - Box 1 Business Office Reports and Charts, July 1945 number 33-40
  - Box 1 Philosophy, History, and Operation of the Radio Research Laboratory (Transition Department)
  - Box 2 Group Progress Reports (monthly) 8/1/42-12/15/43
  - Box 3 Group Progress Reports (monthly)12/15/43-8/15/44
  - Box 3 Group Progress Reports (monthly) 5/15/45-10/15/45
  - Box 4 Group Progress Reports (monthly) 8/15/44-5/15/45
  - Box 4 Group Reports on Target Dates
  - Box 4 Washington News Letter
  - Box 5 Washington Liaison Reports
  - Box 5 Special Projects Liaison Reports
  - Box 5 Summary Reports of Transition Projects
  - Box 5 Transition Summaries
  - Box 6 Transition Monthly Progress Reports
  - Box 6 Final Project Reports, R.M. Flynn
  - Box 6 Final Project Reports, H.C. Singleton and Clare Driscoll
  - Box 6 Final Project Reports, Marlowe G. Moses
  - Box 6 Final Project Reports, R.C. Moyer
  - Box 7 Summary Report of Transition Projects
  - Box 7 RRL Design Notes
  - Box 7 RRL Engineering Notes
  - Box 7 Monthly Progress Report of Signal Corp Branch, Feb. 1945
  - Box 7 Monthly Progress Report of Signal Corp Branch, Mar. 1945
  - Box 7 List of all TMRs Issued [Transition Memorandum Reports]
- UAV 728.442 Instructions Given to Harvard Maintenance Dept. for the Alterations of the Biological Lab. North Wing, May 9, 1942-Sept. 30, 1942 (1 container)
  Scope and Content: This subseries documents building alterations carried out to support the activities of the Radio Research Laboratory.
- UAV 728.95.3 Records Concerning Field Stations and Branch Laboratories, 1942-1946 3.6 cubic feet (11 containers)
  Scope and Content: This subseries documents the relationship between the Radio Research Laboratory and its branch laboratories. The records chiefly concern the American British Laboratory (ABL), but the information here also concerns the Florosa field station and smaller branch laboratories. Forms of documentation include meeting minutes, telegrams, reports of trips to the field laboratories, and reports of technical observers (TO).
  - Box 1 Administrative Report of the American British Laboratory
  - Box 1 The Operational Use of RCM in the ETO as Related to the Technical History of the American British Laboratory
  - Box 1 ABL-Florosa Newsletters
  - Box 1 Project Index
  - Box 1 Personnel Assignments, Project Requests, ASB [Advanced Service Base]
  - Box 1 Newsletters, ASB
  - Box 1 9th BD [Bomb Division] T.S. Kuhiv
  - Box 1 Trip Reports, ASB
  - Box 1 Miscellaneous Memos and Correspondence, ASB
  - Box 1 Invention Disclosure and Miscellaneous Memos
  - Box 2 Transmitter Group Trip Reports
  - Box 2 Trip Reports: Antenna Group, Communications Group, and Receiver/Investigational Group
  - Box 2 ABL Reports: ASB Trip Reports, MTO Trip Reports, WINDOW Trip Reports, J.M. Hollywood Trip Reports, Villard Trip Reports, Fubini Proximity Fuse, PETTICOAT Reports
  - Box 2 American British Laboratory: Minutes of Sunday Meetings
  - Box 3 American British Laboratory: Teletype Conference Minutes
  - Box 3 American British Laboratory: Progress Reports
  - Box 4 ABL 15 OEMsr 1045 (5)
  - Box 5 OEMsr 411
  - Box 5 Cables East Jan. '45-Aug. '45
  - Box 5 Cables East July '44-Dec. '44
  - Box 5 Cables East Jan. '44-June '44
  - Box 5 Cables East Aug. '43-Dec. '43
  - Box 5 Cables West
  - Box 5 Cables West Jan. '45-Mar. '45
  - Box 5 Cables West Oct. '44-Dec. '14
  - Box 6 Cables West July '44-Sept '44
  - Box 6 Cables West Apr. '44-June '44
  - Box 6 Cables West Jan. '44-Mar. '44
  - Box 6 Cables West May '43-Dec. '43
  - Box 6 ABL Contract
  - Box 6 ABL Informal Year's Report 1944
  - Box 6 ABL Monthly Business Reports
  - Box 6 ABL Monthly Statement of Charges
  - Box 6 AIL Personnel
  - Box 6 AEL Organization, General 1944
  - Box 6 ABL Organization, General 1943
  - Box 6 ABL Personnel, Anderson Letter
  - Box 6 ABL CBS, Personnel, General
  - Box 6 ABL Personnel (Post-War) 1944
  - Box 6 ABL Salaries 1945
  - Box 6 ABL Salaries 1944
  - Box 7 ABL Budget
  - Box 7 ABL Business Correspondence, General 1945
  - Box 7 ABL Business Correspondence, General
  - Box 7 ABL Demobilization
  - Box 7 ABL Equipment, Transfer of Accountability
  - Box 7 Transfer of Accountability 1944 (2)
  - Box 7 Transfer of Accountability 1945
  - Box 8 ABL-15 Summary of Activities
  - Box 8 ABL-15 General March thru Sept. 1945
  - Box 8 ABL-15 General Jan. thru Feb. 1945
  - Box 8 ABL-15 General Aug. thru Dec. 1944
  - Box 8 ABL-15 General May thru July 1944
  - Box 8 ABL-15 Jan. thru April 1944
  - Box 8 ABL-15 General 1943
  - Box 8 Florosa Field Station
  - Box 8 Florosa
  - Box 8 Florosa Field Station
  - Box 9 Florosa Field Station: General
  - Box 9 Florosa Field Station General
  - Box 9 General Correspondence
  - Box 9 Army/Navy
  - Box 9 NDRC/Division 15
  - Box 9 RRL/Florosa
  - Box 9 Memo File
  - Box 9 Telegrams & Toll Calls
  - Box 9 More Telegrams
  - Box 9 Telephone Conversations
  - Box 9 Division 15 Field Testing
  - Box 10 Weekly Progress Reports
  - Box 10 Weekly Commentary
  - Box 10 Monthly Reports
  - Box 10 Florosa Progress Reports
  - Box 10 PBOSRD/RRL Pacific Laboratories
  - Box 10 Field Mission Reports, T.O. File
  - Box 10 Teletype Conference, General
  - Box 10 T.O. Scien. Consult., General Policy, Processing, Etc.
  - Box 10 ETO, Advanced Service Base Tech. Objects
  - Box 10 Pacific Tech. Observers, General
  - Box 10 MTO Technical Observers 1944-45
  - Box 10 NATO Tech. Observers
  - Box 10 CBI Tech. Observers
  - Box 10 Central Pacific Tech. Observers
  - Box 11 Pacific Ocean Area (Pearl Harbor) Tech. Observers
  - Box 11 Advisor/Consultant Correspondence Sept. '42-Sept. '45 (General: RRL/NDRC)
  - Box 11 Advisor/Consultant Service: General Army 1943-45
  - Box 11 Advisor/Consultant Service: General Navy
  - Box 11 Consultant Service General 1943-44
- UAV 728.295.5 Photographs of field operations, 1942-1946 2 containers of photographic prints and photographic negatives)
  Scope and Content: This subseries documents field operations. Photographs depict equipment, researchers, the landscape, and the camp. Photographs of the Beaver Projects are particularly numerous.
  - Box 1 Photos from Florosa
  - Box 1 Photos Proofs (Beaver Project) (5 folders)
  - Box 1 C.W. Oliphant Photos (Beaver Project) (18 folders)
  - Box 2 C.W. Oliphant Photos (Beaver Project) (15 folders)
  - Box 2 Beaver Project [labeled photos] (4 folders)
  - Box 2 Beaver III Photos (Wurzburg)
  - Box 2 Beaver III Photos (Corsica)
  - Box 2 Beaver III Photos (Oran)
  - Box 2 Beaver III Photos (Misc.) (2 folders)
- UAV 728.95.4 Records Concerning Demobilization and Laboratory History, 1942-1946 3.6 cubic feet (11 containers)
  Scope and Content: This subseries documents the demobilization of the Radio Research Laboratory. This subseries also contains documents that appear to have been collected to illustrate the history of the RRL, and perhaps more broadly, the use of radar in defense. Forms of documentation include directories, abstracts, reports, correspondence, data on allied and enemy electronic equipment and radar, and lists of documents intended for a "Radio Research Laboratory Archives." Also included are numerous files which the Laboratory labeled "Miscellaneous" in which individual documents are numbered.
  - Box 1 Misc. Terman Diary
  - Box 1 Diary of Beaver Project
  - Box 1 Misc. 2-23
  - Box 1 Misc. 25-67
  - Box 1 Misc. 68 F.L. Whipple Diary
  - Box 1 Misc. 69-80, 83, 94-119
  - Box 1 Misc. 133
  - Box 1 Misc. 120-172
  - Box 1 Extracts of Letters (mainly to Terman)
  - Box 1 Misc. 154 China, Burma, India, Journal
  - Box 1 Memos Misc. 156-159
  - Box 1 Misc. 172 number 6 changed to Sum. of Arney, 1133 7/21/45
  - Box 1 Misc. 173
  - Box 2 Misc. 176-212
  - Box 2 Scientific Consultants 184, 191
  - Box 2 Misc. 187 (2)
  - Box 2 T.O. Summary Report on Missions (FMR-1 through FMR-11)
  - Box 2 Misc. 197
  - Box 2 Misc. 198
  - Box 2 Misc. 205
  - Box 2 Misc. 206
  - Box 3 Misc. 208
  - Box 3 Misc. 213
  - Box 3 Misc. 214
  - Box 3 Misc. 215
  - Box 3 Misc. 216-259
  - Box 3 Misc. 223, 225, 226 ABL Reports
  - Box 4 Misc. 230
  - Box 4 Misc. 239
  - Box 4 Misc. 240
  - Box 4 Misc. 244
  - Box 4 Misc. 255
  - Box 4 Misc. 261-284
  - Box 4 Misc. 268 E.R. Brill Collected Papers on RCM 1942-1946
  - Box 4 Misc. 273
  - Box 4 Misc. 274, 283 ABL
  - Box 4 Misc. 287, 302, 304
  - Box 4 Administrative Report Accumulation
  - Box 5 Bacorn Abstracts Book 1
  - Box 5 Bacorn Abstracts Book 2
  - Box 5 Bacorn Abstracts Book 3
  - Box 5 Bacorn Abstracts Book 4
  - Box 5 Bacorn Abstracts Book 5
  - Box 5 Advisory Specialists, A.E. Cullum Correspondence
  - Box 5 Administrative History Material
  - Box 5 Liaison History
  - Box 5 Demonstrations
  - Box 5 Termination Reports
  - Box 5 Winding by 1945-46
  - Box 6 Dec 20/45 Reports
  - Box 6 Monograph 1&2
  - Box 6 Liais/Trans : Internal 1943-1944
  - Box 6 Liais/Trans : Internal 1945
  - Box 6 Liais/Trans : Incoming
  - Box 6 Demobilization: Technical Termination Memos
  - Box 6 Demobilization: Technical Termination Memos
  - Box 6 IRE Convention 1945
  - Box 6 Demobilization: General Termination
  - Box 6 AAF-RRL Policy & Rules
  - Box 7 AAFPOA
  - Box 7 Personal Reports
  - Box 7 RRL Show
  - Box 7 Press Release Material
  - Box 7 Release Mechanism Investigations
  - Box 7 Director's Report Information Requests
  - Box 7 Source Material re: Director's Report
  - Box 7 Historical Dept.: FSL & T.O. 1943-45
  - Box 7 Historical Dept.: General Memos
  - Box 7 Historical Dept.: Technical/General Memos
  - Box 7 Magazine Articles
  - Box 7 Publicity
  - Box 7 RCM Story
  - Box 7 Liais/Trans: Outgoing
  - Box 7 Liaison Representatives, General
  - Box 8 Proj. Coord. Center: General
  - Box 8 Special Report Section
  - Box 8 Project Activity Charts
  - Box 8 Projects: Liaison & Transition Activities Associated with Closing Out & Transferring Projects (2)
  - Box 8 Reports
  - Box 9 Radar, RCM Eqpt. Data Gen'l: Navy (US)
  - Box 9 Radar, RCM Eqpt. Data Gen'l: Army (US)
  - Box 9 Radar, RCM Eqpt. Data Gen'l: RRL (2)
  - Box 9 Radar, RCM Eqpt. Data Gen'l: Brit., Chinese, USSR
  - Box 9 Electronic Eqpt. Data, Enemy, General
  - Box 9 Elec. Eqpt. Data: German
  - Box 9 German Wurzburg Radar Data, Enemy Eqpt.
  - Box 9 Electronic Eqpt. Data: Japanese
  - Box 10 Japanese Radars VIII(B)
  - Box 10 Japanese/German Electronic Liaison Data
  - Box 10 Japanese Questionnaire
  - Box 10 Electronic Eqpt. Data: Baluchistan
  - Box 10 Electronic Eqpt. Data Baluchistan VIII(B)
  - Box 10 Misc. Allied/Enemy Eqpt. Data, General
  - Box 10 German Measles (Guided Missiles) Incoming Correspondence
  - Box 10 Guided Missiles, German Measles
  - Box 10 Guided Missiles, General
  - Box 10 Shoran
  - Box 10 Index to Publishing Files
  - Box 10 Records of Files to be Transferred from RRL to Littauer Library
  - Box 10 Radio Research Laboratory Archives File Directory (1942-1946): Contents
  - Box 10 Radio Research Laboratory Archives File Directory (1942-1946): Section I
  - Box 10 Radio Research Laboratory Archives File Directory (1942-1946): Section II
  - Box 10 Radio Research Laboratory Archives File Directory (1942-1946): Section III (2)
  - Box 10 Radio Research Laboratory Archives File Directory (1942-1946): Section IV-A
  - Box 11 Radio Research Laboratory Archives File Directory (1942-1946): Section IV-B&C
  - Box 11 Radio Research Laboratory Archives File Directory (1942-1946): Section IV-D
  - Box 11 Radio Research Laboratory Archives File Directory (1942-1946): Projects by Groups
  - Box 11 Radio Research Laboratory Archives File Directory (1942-1946): NDRC Active Proj.
  - Box 11 Radio Research Laboratory Archives File Directory (1942-1946): Demobilization
  - Box 11 Radio Research Laboratory Archives File Directory (1942-1946): ABL Program
  - Box 11 Radio Research Laboratory Archives File Directory (1942-1946): Miscellaneous
- UAV 728.295.6 Press Accounts, 1942-1946 (2 volumes)
  Related Material: The majority of press releases are in the General Administrative Records series.
  
  Scope and Content: This subseries consists of scrapbooks containing press accounts of radio countermeasures. Most of the press accounts are newspaper clippings, but also included are two press releases and a booklet entitled: Electronic Warfare: A Report on Radar Countermeasures .
- UAV 728.25 Human resources, 1942-ca. 1946 ca. 4 cubic feet (12 containers)
  Scope and Content: These records document administration of personnel at the Radio Research Laboratory. They contain information relating to policies, security, recruitment, training, health insurance, and other areas of interest to managers of personnel.
  
  Arrangement: In alphabetical order by subject.
  - Box 1 A-Badges
  - Box 2 Blue Cross-Clearance Reports
  - Box 3 Clearance Reports-Distribution Reports
  - Box 4 D-Incentive Programs
  - Box 5 I-Management Committee Minutes
  - Box 6 M-Placement Committee
  - Box 7 P-Recruiting
  - Box 8 R-Red Cross
  - Box 9 R-Scholarships
  - Box 10 Sc-Selective Service Records
  - Box 11 Se-Training Pool
  - Box 12 Tr-W
- UAV 728.269 Personnel records, 1942-ca. 1946 ca. 20.6 cubic feet (62 containers)
  Scope and Content: This subseries documents the personnel history of individual employees.
  
  Arrangement: In alphabetical order by employee name.
  - Box 1 A-An
  - Box 2 An-Ax
  - Box 3 Ay-Ba
  - Box 4 Ba-Be
  - Box 5 Be-Bi
  - Box 6 Bi-Bo
  - Box 7 Bo-Br
  - Box 8 Br-Bu
  - Box 9 Bu-Ca
  - Box 10 Ca-Ch
  - Box 11 Ch-Co
  - Box 12 Co-Cor
  - Box 13 Cor-Cu
  - Box 14 Cu-Da
  - Box 15 Da-De
  - Box 16 De-Do
  - Box 17 Do-Du
  - Box 18 Du-El
  - Box 19 El-Fe
  - Box 20 Fe-Fo
  - Box 21 Fr-Ga
  - Box 22 Ga-Gi
  - Box 23 Gi-Go
  - Box 24 Go-Gu
  - Box 25 Gu-Ha
  - Box 26 Ha-Has
  - Box 27 Hat-Hi
  - Box 28 Hi-Ho
  - Box 29 Ho-Hu
  - Box 30 Hu-Ja
  - Box 31 Je-Ka
  - Box 32 Ka-Ke
  - Box 33 Ke-Ko
  - Box 34 Kr-La
  - Box 35 La-Le
  - Box 36 Le-Li
  - Box 37 Li-Ly
  - Box 38 Ma-Mal
  - Box 39 Mal-Mc
  - Box 40 Mc-McP
  - Box 41 McP-Mi
  - Box 42 Mo-Mos
  - Box 43 Mos-Ni
  - Box 44 No-Ol
  - Box 45 Ol-Pan
  - Box 46 Pan-Pe
  - Box 47 Pe-Po
  - Box 48 Po-Ra
  - Box 49 Re-Ri
  - Box 50 Ri-Ro
  - Box 51 Ro-Sa
  - Box 52 Sa-Sh
  - Box 53 Sh-Sm
  - Box 54 Sm-St
  - Box 55 St-Su
  - Box 56 Su-Te
  - Box 57 Te-Tu
  - Box 58 Tu-Vi
  - Box 59 Vi-We
  - Box 60 We-Wh
  - Box 61 Wh-Wi
  - Box 62 Wi-Z
- UAV 728.254 Medical Records of Radio Research Laboratory Personnel, [ca. 1940-ca. 1946?] .3 cubic foot (1 box)
  Scope and Content: These records document the kind of medical information maintained by the Laboratory about its employees. These records are only a sample of the personnel medical records. The sample consists of the letter "A" only.
  
  Arrangement: In alphabetical order by employee name.
- UAV 728.286 Time sheets (1 folder)
  Scope and Content: These records document the routine recording of time spent on the job. These records are only a sample of the time sheets used to record an individual employee's hours.
- UAV 728.229 Forms (1 folder)

Series: Research Records ca. 7.3 cubic feet (17 containers)
Scope and Content: This series documents the research conducted at the Radio Research Laboratory.
Arrangement:
- Technical Reports
- Invention Disclosure Cards
- Images of Equipment, Graphs, and Charts
- Flying Dutchman Target-Complexity Indicator System Sound Recordings
- UAV 728.295.1 Technical Reports, 1942-1946 6.7 cubic feet (14 containers)
  Scope and Content: This subseries documents the results of research carried out by the Radio Research Laboratory. Also included here are operating instructions for equipment, progress reports, and a catalogue of equipment developed by the Laboratory. In this subseries, researchers will also find information bulletins and other publications issued by the Laboratory and subject indexes to the reports.
  - Box 1 Report 1: A High Level Noise Generator
  - Box 1 Report 2: A Study of Jamming of Radar Systems
  - Box 1 Report 3: Preliminary Instruction Book B1600 Transmitter
  - Box 1 Report 4: Analysis of Window and Related Matters
  - Box 1 Report 5: Progress Report of the Radio Research Laboratory, For the Period Sept. 1, 1942-Oct. 21, 1942
  - Box 1 Report 6: Operating Instructions for Type D101 Tuning Unit
  - Box 1 Report 7: Sideband Energy in a Modulated Wave
  - Box 1 Report 7A: RMS and Average Value of Limited Noise (Appendix to Report 7)
  - Box 1 Report 8: Progress Report of the Radio Research Laboratory, For the Period Oct. 21-Nov. 20, 1942
  - Box 1 Report 9: Wide-Band Radar Warning Receivers (Zero-Catchers)
  - Box 1 Report 10: Progress Report of the Radio Research Laboratory, For the Period Nov. 21-Dec. 20, 1942
  - Box 1 Report 11: A Wide-Range Microwave Oscillator (A-1501)
  - Box 1 Report 12: Progress Report of the Radio Research Laboratory, For the Period Dec. 21, 1942-Jan. 20, 1943
  - Box 1 Report 13: The RC-160 Receiver (Auto-Search)
  - Box 1 Report 14: B502 Jamming Signal Generator
  - Box 1 Report 15: 100 MC Airborne Jamming Transmitter (B1700) (Navy:CXCE)
  - Box 1 Report 16: Operating Instructions for Type D104-A Tuning Unit
  - Box 1 Report 17: Operating Instructions for Type D102 Tuning Unit
  - Box 1 Report 18: Wide-Band Cone Antennas (Preliminary Report)
  - Box 1 Report 19: Progress Report of the Radio Research Laboratory, For the Period Jan. 21-Feb. 20, 1943
  - Box 1 Report 20: The Vulnerability of Loran to Radio Countermeasures
  - Box 1 Report 21: Transformers and Chokes for Power Supplies
  - Box 1 Report 22: Preliminary Instructions B501 Pulse Signal Generator
  - Box 1 Report 23: Frequency Characteristics of Wide-Band Matching Sections
  - Box 1 Report 24: Preliminary Report on the Susceptibility to Jamming of the SCR-268
  - Box 1 Report 25: Operating Instructions for D1202-A Spectrum Analyzer
  - Box 1 Report 26: Calculated Frequency Spectrum of RCA 931 Noise Source
  - Box 1 Report 27: Progress Report of the Radio Research Laboratory, For the Period Feb. 21-March 20, 1943
  - Box 1 Report 28: Design Information for Several U.H.F. Filters
  - Box 1 Report 29: The Spectra of Noise-Modulated Waves and Their Relative Efficiencies for Barrage Jamming
  - Box 2 Report 30: Operating Instructions for the C1700 Homing Device Attachment "Fanny"
  - Box 2 Report 31: B500 Synthetic Radar and Jamming Equipment for Laboratory Studies of Jamming
  - Box 2 Report 32: Note on the Efficacy of a Series of Pulses for Barrage Jamming
  - Box 2 Report 33: Progress Report of the Radio Research Laboratory, For the Period March 21-April 20, 1943
  - Box 2 Report 34: Measured Impedance Characteristics of Cylindrical Radiators Less Than One Wavelength Long
  - Box 2 Report 35: The RRL Mandrel Transmitter (Army: RC-183)
  - Box 2 Report 36: Preliminary Report on the Susceptibility to Jamming of the Navy ASVC or the Army SCR-521-A Radar
  - Box 2 Report 37: Network for Regulating A-C Voltage from Variable-Speed Generator
  - Box 2 Report 38: CW Oscillators Using the Experimental GE L-3 Triode in Coaxial Line Circuits
  - Box 2 Report 39: Techniques for Still and Cine'-Photography of CathodeRay Tube Screen Patterns
  - Box 2 Report 40: The AN/APQ-3 (A-2600) and AN/APQ-4 (A-2700) Wide-Range Microwave Superheterodyne Receivers
  - Box 2 Report 41: Jamming Studies of 10 CM Radar Systems
  - Box 2 Report 42: The Susceptibility to Jamming of the Navy ASG/Army SCR-617
  - Box 2 Report 43: Progress Report of the Radio Research Laboratory, For the Period April 21-May 31, 1943
  - Box 2 Report 44: Notes on Power Required for Noise Jamming
  - Box 2 Report 45: The F-902 (Carpet I) Airborne Jamming Transmitter (RRL prototype of Army RC-156, Navy CXCD)
  - Box 2 Report 46: Results of the Field Jamming Tests and Laboratory Tests of the Replacement Video Amplifier for the SCR-717-B
  - Box 2 Report 47: Progress Report of the Radio Research Laboratory, For the Period May 21-June 20, 1943
  - Box 2 Report 48: Enemy Radar Characteristics
  - Box 2 Report 49: CW Oscillations Using the G.E. ZP-449 Triode in Coaxial Line Circuits
  - Box 2 Report 50: Recent Research on "Window"
  - Box 2 Report 52: Noise and Hum Reduction in Installations of RC-164 Equipment in Large Airplanes
  - Box 2 Report 53: Preliminary Report on the Susceptibility to Jamming of the Navy Mark IV (FD) Radar
  - Box 2 Report 54: Progress Report of the Radio Research Laboratory, For the Period June 21-July 20, 1943
  - Box 2 Report 55: Jamming of the "Type A" Presentation with Sine Wave AM, Noise AM, and with DINA
  - Box 2 Report 56: Four Types of Frequency Modulation and their Possible Use for Radar and Communication Jamming
  - Box 2 Report 57: Operating Characteristics of the 931 Phototube in the Frequency Range 50 to 5000 KC
  - Box 2 Report 58: Progress Report of the Radio Research Laboratory, For the Period July 21-August 20, 1943
  - Box 2 Report 59: Considerations Concerning Radar Chicks
  - Box 2 Report 60: Internal Progress Report of the Radio Research Laboratory For the Period August 21-September 15, 1943
  - Box 3 Report 61: Field Tests of Dina and Dinamate at Wright Field
  - Box 3 Report 62: F-2500 Higher Power Carpet Transmitter (Carpet III) RL prototype of AN/APQ-9
  - Box 3 Report 64: Document Digest of the Radio Research Laboratory, For the Period July 8, 1942 to June 20, 1944
  - Box 3 Report 64A: Supplement to Document Digest For the Period June 21 to Sept. 21, 1944
  - Box 3 Report 64C: Document Digest For the Period July 8, 1942 to December 31, 1945
  - Box 3 Report 65: Jamming of the "Type A" Presentation with Sine Wave FM, Noise FM, and with Various Combinations of FM and AM
  - Box 3 Report 66: Jamming Tests Against the Orlando Air Defense System
  - Box 3 Report 67: Summarized Report of the Beaver I Mission
  - Box 3 Report 68: Noise in Gas Tubes
  - Box 3 Report 70: Preliminary Test Results on Westinghouse 10kw Magnetron
  - Box 3 Report 70A: Summary Report of Further Developments Concerning the Westinghouse 10-kw Magnetron
  - Box 3 Report 71: The Effectiveness of AM, FM, and DINA Jamming of the "Type A" Presentation as a Function of I-F and of Video Overloading
  - Box 3 Report 72: A Preliminary Report on the Susceptibility to Jamming of the SCR-717-B
  - Box 3 Report 73: A Study of Chaff Echoes at 515 MC
  - Box 3 Report 74: Magnet for the 6D4 Noise Tube
  - Box 3 Report 75: Jamming of the "Type A" Presentation with Periodic Pulses and with Random Pulses
  - Box 3 Report 76: Audio and Supersonic Noise Generators
  - Box 4 Report 77: The Theoretical Effect of Integration on the Visibility of Weak Signals Through Noise
  - Box 4 Report 78: Principles for the Design of Small Power Transformers
  - Box 4 Report 80: Jamming of the "Type B" Presentation
  - Box 4 Report 81: Synthetic Giant Wurzburg
  - Box 4 Report 81A: Synthetic Giant Wurzburg (Antenna Modification)
  - Box 4 Report 82: Class C Operation of Reactance Tubes
  - Box 4 Report 83: The G.E. ZP-552 Triode as a CW Oscillator and Amplifier in Coaxial Line Circuits
  - Box 4 Report 84: The Improvement in Minimum Detectable Signal in Noise Through the Use of the Long Afterglow CR Tube, and Through Photographic Intergration
  - Box 4 Report 85: The Effectiveness of Jamming of the "Type B" Presentation as a Function of I-F and of Video Overloading
  - Box 4 Report 86: Theory of the Visual VS Aural or Meter Reception of Radar Signals in the Presence of Noise
  - Box 4 Report 86A: Note on the Theory of Square-Law Rectification of a Modulated Carrier in the Presence of Noise
  - Box 4 Report 88: On the Use of a High Power Ground Jammer Against the German AI Radar
  - Box 4 Report 89: Constant Field Strength Ground Plane for Receiver R.F. Response Measurements
  - Box 4 Report 90: A Calculation of the Effect of Rectification and Clipping on the Spectra of the output of the 6D4, 884, 178A, and 2D21 Noise Sources
  - Box 4 Report 91: Review of Window
  - Box 4 Report 92: Noise Output of the Sylvania 6D4 Gas Triode at Audio and Supersonic Frequencies (25 cps to 10 kc)
  - Box 4 Report 93: Theory of Ship Echoes as Applied to Naval RCM Operations
  - Box 4 Report 94: Report of A/J Training Committee
  - Box 4 Report 95: Survey of German Radar from the Countermeasures Point of View
  - Box 4 Report 96: Video Spectrum Analyzer
  - Box 4 Report 97: A Theoretical Study of the Response of Saturated Linear and Quadratic Rectifiers to Random Noise. Calculations for the 6D4 Noise Source
  - Box 4 Report 98: Report on ASG Field Testing Program
  - Box 4 Report 99: Theory of Reduction of Submarine Echoes by Shielding Screens
  - Box 5 Report 100: Antennas for R.C.M .
  - Box 5 Report 100A: Antennas for RCM (revised edition of #100)
  - Box 5 Report 101: High-Gain Antenna for S-Band Transmitter
  - Box 5 Report 102: Wide Band UHF Amplifier (D1410)
  - Box 5 Report 103: Theory of the Radar Response of Chaff
  - Box 5 Report 105: Tests of M-4100 System Installed on U.S.S. Gunason
  - Box 5 Report 106: A Condensed Summary of the Present Status of Window Development at RRL
  - Box 5 Report 107: Preliminary Experimental Results with the Z-3600 Repeater
  - Box 5 Report 108: Broad-Band Tests of AN/APT-4 (XA-2) Transmitter in the Wurzburg Radar Band
  - Box 5 Report 109: Shipborne Tests of M2600 (CXGA) Radar and Radio Direction Finder
  - Box 5 Report 110: Modification of SCR-648 to Simulate German Wurzburgs
  - Box 5 Report 111: Raven Installations and Tests on Navy PB4Y-2 Reconnaisance Aircraft (Albatross I)
  - Box 6 Report 112: The Use of Lobe-Switching in Transmission Only, as an A/J Measure
  - Box 6 Report 113: The M4601 and M4602 High-Pass Filters
  - Box 6 Report 114: Preliminary Report of M6300 Antennas
  - Box 6 Report 115: Resonant-Section Coaxial Filters
  - Box 6 Report 115A: An Easily Constructed "High-Pass" Coaxial Filter
  - Box 6 Report 115B: Spurious Responses in a Transmission-Line Low-Pass Filter
  - Box 6 Report 115C: A Note on UHF Coupled Circuits
  - Box 6 Report 115D: Supplementary Information on Resonant-Section, Coaxial Filters
  - Box 6 Report 116: A Triode Oscillator-Tripler
  - Box 6 Report 117: Carpet Transmitter Modification
  - Box 6 Report 118: A/J Wiring Changes in SCR-268
  - Box 6 Report 119: Semi-Empirical Relations Between the Gain, Aperture, Beam Width and Shape of High-Gain Antennas
  - Box 6 Report 120: M6302 Skirted-Stub Antenna
  - Box 6 Report 121: 1-kw Water Load for the Measurement of R-F Power
  - Box 6 Report 122: Spot Frequency Jamming Techniques
  - Box 6 Report 123: Attenuation of RG-21/AU Cable as a Function of Frequency
  - Box 6 Report 124: Peak-Reading Voltmeter
  - Box 6 Report 125: Estimate of Square Sheet Echo Cross-Section; Theoretical Evaluation of Broadside Echoes from Circular Cylinder for Perpendicular Polarization
  - Box 6 Report 126: Test Information on Resnatron Type X-124 and X-139
  - Box 6 Report 127: Power Output Indicators
  - Box 6 Report 128: Analysis for a Possible A/J System Against Window
  - Box 6 Report 129: Identification of Naval Spoofs
  - Box 6 Report 130: Noise Modulation of the ZP 612-6-3 Magnetron at Power Levels Near 300 Watts
  - Box 6 Report 131: A/J Study of Navy RHB
  - Box 6 Report 132: APR-2 Receiver Modifications
  - Box 6 Report 133: Study of Power Requirements for S Band Jamming from Surface Vessels
  - Box 6 Report 134: Tabulation of Antenna Spinner Assemblies for Group M Direction-Finding System
  - Box 6 Report 135: Comparison of APQ-2 and APT-1 Plus AM-18 for Jamming Effectiveness at 206MC
  - Box 6 Report 135A: Comparison of APQ-2 and APT-1 Plus AM-18/APt for Jamming Effectiveness at 210 MC
  - Box 6 Report 136: Audio and Supersonic Noise Characteristics of the RCA 884 and 2050 Gas Tubes (25 CPS to 100 KC)
  - Box 6 Report 137: Resonant Probe in Waveguide
  - Box 6 Report 138: Sensitivity of the AN/APR-5a in Waveguide, 3 to 10 CM
  - Box 6 Report 139: Single-Dial Operation of AN/APT-4 (XA-2), (F3400) Magnetron Transmitter
  - Box 6 Report 140: Analysis of the Effectiveness of Countermeasures
  - Box 6 Report 141: Modification of ASC-I for Dual-Polarization Operation
  - Box 6 Report 142: A Modification to the F-3500 (AN/APT-5, AN/SPT-6) Transmitter to Improve the Power Output in the 350 to 700 MC Range
  - Box 6 Report 143: Blanking of the AN/APR-5 Search Receiver
  - Box 6 Report 144: The "Pulse-Stretcher" as a Device for Increasing the Audio Sensitivity of Search Receivers
  - Box 6 Report 146: A/J Study of Mark 31 Receiver (BAT)
  - Box 6 Report 147: Moisture in Waveguides
  - Box 6 Report 148: Conversion of AN/APR-I for Reduced Bandwidth and Sensitivity
  - Box 6 Report 149: Waveguide Installation for AN/APR-5A
  - Box 6 Report 150: Single-Dial Operation of Carpet I (AN/APT-2)
  - Box 6 Report 151: The Barrage Suitability of Carpet I and III With or Without Window
  - Box 6 Report 152: Minimum Detectable Signal as a Function of Frequency and Other Characteristics of AN/APR-5A
  - Box 6 Report 153: The AT-52/APT, AT-53/APT and AT-54/APT (M313) Stub Antenna Masts, and Assemblies which Include Them
  - Box 7 Report 154: Low-Frequency Spectrum Analyzer
  - Box 7 Report 155: Proof-Of-Performance Measurements of TUBA (A-500C)
  - Box 7 Report 156: Flight Tests of an AN/APA-24 Antenna with Electric Drive
  - Box 7 Report 157: Analysis and Application of Measurements of Radar Cross-Section of Airplane Models
  - Box 7 Report 157A: Analysis and Application of Measurements of Radar Cross Section of Airplane Models-II
  - Box 7 Report 158: The Use of Continuously Rotating Direction Finders Against Signals of Varying Intensity
  - Box 7 Report 159: Applications of Butterfly Circuits
  - Box 7 Report 160: Analysis of UHF Resonant Systems by External Impedance Measurements
  - Box 7 Report 161: A Variable Cut-Off High-Pass Filter for Use with AN/APR-5A
  - Box 7 Report 162: Range Extender for General Radio 760A Sound Analyzer
  - Box 7 Report 163: Design of Microwave Low-Pass Filters
  - Box 7 Report 164: IF-Circuit Modifications of SCR-268
  - Box 7 Report 165: Radio Research Laboratory Film List
  - Box 7 Report 166: Preliminary Report on the M6804 Antennas
  - Box 7 Report 167: An A/J Measure for Setting-On Receivers
  - Box 7 Report 168: C1900 VHF Homing Methods and Homing Equipment
  - Box 7 Report 169: The Characteristics of the Sylvania 6D4 Miniature Gas Triode as a Noise Source for the Range 0.1-5 MC
  - Box 7 Report 170: The RRL E2106 Aural Doppler Attachment for the Mark 4 Radar
  - Box 7 Report 171: Probability Formulas for Simultaneous Periodically Recurring Events
  - Box 7 Report 172: Class "B" Video Amplifiers for Power Amplification of Noise Energy
  - Box 7 Report 173: Flight Tests of an AN/APA-23 Recorder
  - Box 7 Report 174: Probability Calculations on Chaff Clouds, Protecting Against MC 382 Fuzes
  - Box 7 Report 175: Space-Charge-Limited Single-Stream Solutions in a Cylindrical Magnetron with Small Current
  - Box 7 Report 177: Probe Voltmeters
  - Box 7 Report 178: Summary of A/J Developments for ASB Radar Systems
  - Box 7 Report 179: Summary of A/J Developments for the SCR-268 Radar System
  - Box 7 Report 180: Operational Use of the AN/APA-24 D/F Antenna on B-29 Aircraft of the XX Bomber Command
  - Box 7 Report 181: Mark I of M4130 Modification of AN/SPT-6 Radar Set for Use as Variable-Frequency Radar Transmitter
  - Box 7 Report 183: A Report on the Susceptibility of the SCR-720A to Jamming
  - Box 7 Report 184: Recent Progress in the Study of Tunable Squirrel-Cage Magnetrons
  - Box 7 Report 185: Magnetron Modulation by Means of a Rotating Electron Cloud
  - Box 7 Report 186: Design of Simple Broad-Band Waveguide-To-Coax Junctions
  - Box 7 Report 187: Flight Test of APQ-20 in B-17
  - Box 7 Report 187A: Preliminary Flight Tests of APQ-20 in B-29
  - Box 7 Report 188: "Flying Dutchman" Modification of Search Radar to Provide Target-Complexity Indication
  - Box 7 Report 190: Calibration Methods for DBM-1 Radio and Radar Direction Finder
  - Box 7 Report 191: Interpretation of Calibration Data on Shipborne DBM (M4100) and Radar Direction Finder
  - Box 8 Report 192: Optimum Directivity Pattern for Search Antennas
  - Box 8 Report 194: Proximity Fuze Development and Probable Tactical Uses
  - Box 8 Report 195: Window Tests on MC 382 Fuzes Used on Standard Air-to-Air Rockets
  - Box 8 Report 196: Barrage Suitability of AN/APT-5
  - Box 8 Report 197: The Problem of Countermeasures Against MC 382 Proximity Fuzes
  - Box 8 Report 198: C1906 Azimuth Homing System (Navy N/APA-48)
  - Box 8 Report 199: Flight Tests of G1151 Dispenser
  - Box 8 Report 200: Bench Testing of Proximity Fuzes
  - Box 8 Report 201: Filter Mismatch Loss with Improper Termination
  - Box 8 Report 202: Graphs Useful in Determining Optimum Height of Jamming Antennas
  - Box 8 Report 203: Modifications of the AN-148-A Antenna for RCM Use in the 200 MC Region
  - Box 8 Report 203A: Radiation Characteristics of the Modified AN-148-A Antenna
  - Box 8 Report 204: Jamming Effectiveness of APT-4 (XA-2) Against Small Wurzburg and Synthetic Giant Wurzburg
  - Box 8 Report 204A: Jamming Effectiveness of APT-4 Against SCR-545-A
  - Box 8 Report 205: A/J Study of AN/APQ-5B Lab Attachment
  - Box 8 Report 206: Low-Frequency Modification of the Rug Transmitter (AN/APQ-2)
  - Box 8 Report 207: An A/J Measure for Use Against Circularly Polarized Jamming
  - Box 8 Report 208: Modification of AN/APA-42 for Bottom Mounting in B-29
  - Box 8 Report 209: An R-F Wattmeter for the 1000 MC-3000 MC Range
  - Box 8 Report 210: Design Considerations and Characteristics of M2900 Antennas
  - Box 8 Report 211: Properties of Ridge Wave Guide
  - Box 8 Report 212: Adaptation of AS-161/ART and AS-97/ART Whip Antennas as Horizontally-Polarized Radiators in the 75 MC Region
  - Box 8 Report 213: Method of Installation and Pattern Measurement of C1950 Series Homing Antennas (AN/APA-48) in Various Type Aircraft
  - Box 8 Report 214: A Report on the Susceptibility to Jamming of the AN/APG-1 Radar
  - Box 8 Report 215: Jamming Susceptibility of the AN/APS-4 (ASH) Radar and the APA-16 Bombing Attachment
  - Box 8 Report 216: Performance of the As-251/AP (M2204) Antenna System When Mounted in Metallic Recesses
  - Box 8 Report 217: An Armoured Steel Cable with Low Radar Reflectivity
  - Box 8 Report 218: Performance and Applications of the M-2914 Relay
  - Box 8 Report 219: A/J Evaluation of AN/TPL-1
  - Box 8 Report 220: Radar Video Analyzer
  - Box 8 Report 221: A Broadband Directional Pickup and Wattmeter for Waveguide
  - Box 8 Report 223: Modifications of the AM-33/ART Amplifier
  - Box 8 Report 224: Misdirection of Lobed Radar by Mechanical Means
  - Box 8 Report 225: The Equalization of Noise Amplifiers
  - Box 8 Report 226: Airborne Jamming Tests Against AI Radars
  - Box 8 Report 227: Field Test of Crash Model C-1906 Homing Device
  - Box 8 Report 228: RCM Against Radar Blind Bombing Equipment
  - Box 8 Report 229: An All-Metal Dummy Load For Waveguide
  - Box 8 Report 230: Silent Knight
  - Box 8 Report 231: A Report on the Susceptibility to Jamming of the SCR-545
  - Box 8 Report 232: Oscillations and Noise in Hot-Cathode Arcs
  - Box 8 Report 233: The M6120 Broad-Band Antenna Spinner for the M4100 (DBM) Direction Finding System
  - Box 8 Report 234: Resume of UHF Filter Development
  - Box 8 Report 235: Modulation Tests of the 6J21 Magnetron
  - Box 9 Report 236: Window Developments
  - Box 9 Report 237: R-F Conductors and Fittings
  - Box 9 Report 238: The Appraisal of RCM Through the Examination of Battle Damage
  - Box 9 Report 239: Cold-Cathode Gas-Tube Noise Generators
  - Box 9 Report 240: The Universal Characteristics of Triple-Resonant-Circuit Band-Pass Filters
  - Box 9 Report 241: McNally Tubes in Radial Cavities
  - Box 9 Report 242: A Photographic-"PPI" Method of Model Antenna Pattern Measurement
  - Box 9 Report 243: M6700 Shipborne DF Antenna
  - Box 9 Report 244: Video Transformers for Noise Voltage
  - Box 9 Report 245: Proposed Field Tests of AN/APS-4 Radar
  - Box 9 Report 246: Microwave Wattmeter
  - Box 9 Report 247: A Self-Calibrating Thermistor Bridge
  - Box 9 Report 248: Laboratory Studies of Jamming Effectiveness
  - Box 9 Report 249: The Construction of the Donutron A Tunable Squirrel-Cage Magnetron
  - Box 9 Report 250: Measurements of Jamming Effectiveness
  - Box 9 Report 251: The Calculation of the Effectiveness of Electric Jamming of Radar-Controlled Flak and Searchlights
  - Box 9 Report 252: A Tunable Squirrel-Cage Magnetron (The Donutron)
  - Box 9 Report 253: Attenuation in Waveguide at 3000 MC Due to Moisture Condensation
  - Box 9 Report 254: Supplementary Report on Low-Frequency Modification of the Rug Transmitter (AN/APQ-2)
  - Box 9 Report 255: Measurements on Wide-Band Coaxial Lines
  - Box 9 Report 256: The E3200 X-Band Jamming System
  - Box 9 Report 257: The P102 Pulse-Amplitude Recorder and Time Marker
  - Box 9 Report 258: 6D4 Spectrum Checker
  - Box 9 Report 259: Resume of Ultrahigh-Frequency Tuned-Circuit Preselectors
  - Box 9 Report 260: The Circuit Theory of Noise
  - Box 9 Report 262: A Noise Analyzer Using a Commercial Communications Receiver
  - Box 9 Report 263: Slot-Antenna Development at Radio Research Laboratory
  - Box 9 Report 264: An Approximate Theory of Eddy-Current Loss in Transformer Cores Excited by Sine Wave or by Random Noise
  - Box 9 Report 265: The AN/APQ-20 Spot-Jamming System
  - Box 9 Report 266: The S5000 Spot-Jamming System (Service Designation AN/APQ-27)
  - Box 9 Report 268: The Electrical Characteristics of the D9081 and Q1248 X-Band oscillator
  - Box 9 Report 270: The Low-Frequency Elephant Transmitter
  - Box 9 Report 272: The Effect of Signal-Intercept Probabilities on Search-Receiver Design
  - Box 9 Report 274: Nonlinear Limiter Circuits for Use With Intensity-Modulated Indicators
  - Box 9 Report 276: Techniques of Still and Motion Picture Photography of Radar Screens
  - Box 9 Report 277: Development of the U1500 Standard Signal Generator for the Frequency Range, 1800-4000 Megacycles (TS-403/U)
  - Box 9 Report 278: Experimental Determination of Formation Factor
  - Box 9 Report 279: Notes on Receiver Sensitivity
  - Box 9 Report 280: Measurement of Radio-Frequency Power by the Coaxial Thermocouple-Lossy Line Method
  - Box 9 Report 280A: Measurement of Radio-Frequency Power by the Equivalent Signal Method
  - Box 9 Report 280B: Calorimeter Type R-F Wattmeter
  - Box 9 Report 281: Measurement of Attenuation of Microwave Filters
  - Box 9 Report 282: AN/APA-42-Tl Direction-Finding-Antenna Trainer
  - Box 10 Report 283: Circularly Polarized Search Antennas for the Band 2100 to 4000 MC
  - Box 10 Report 284: Self-Regulating Field Excitation for C-W Magnetrons
  - Box 10 Report 285: A High-Speed Sweep Generator with Sectional Scan
  - Box 10 Report 286: Summary Report on C1600 "Moth" (AN/APQ-14)
  - Box 10 Report 287: M6600 X-Band Antenna and Drive Assembly for Use with M3000 (AN/APQ-17) Airborne Direction Finder
  - Box 10 Report 289: A Heterodyne Frequency Meter for 55 to 1000 MC
  - Box 10 Report 290: Shipboard Trials of the X-MBT Radar Intercept and Jamming System
  - Box 10 Report 291: Report on M4000 Antennas
  - Box 10 Report 292: Notes on Spectrum Analysis
  - Box 10 Report 293: Voltage-Standing-Wave-Ratio Measuring Equipment
  - Box 10 Report 294: S-Band Airborne Circularly Polarized Radiator
  - Box 10 Report 295: A 60- to 300-MC Power Oscillator With Single-Dial Tuning Control
  - Box 10 Report 296: The AN/APQ-21 Airborne System
  - Box 10 Report 297: M7100 Direction Finder
  - Box 10 Report 298: A Review of Data on the M.2200 Fishhook Antennas
  - Box 10 Report 299: Administrative History of the Radio Research Laboratory
  - Box 10 Report 301: Summary Technical Report-Part II, March 21, 1942 -December 31, 1945
  - Box 11 Report 302: Summary Technical Report-Part I "Very High Frequency Techniques" March 21, 1942-December 31, 1945
  - Box 11 Report A-1: Tests on Jamming at the Intermediate Frequency of the AI-10 Receiver
  - Box 11 Report A700-Rl: Design Information for Several U.H.F. Filters
  - Box 11 Report B2900/B3200-Rl: Field Tests of DANA and DINAMATE at Wright Field
  - Box 11 Report D101-Rl: Flight Test of D101 Tuning Unit
  - Box 11 Report D101-R2: Life Test Data on Delco Type 5066611 Motor
  - Box 11 Report E200-Rl: The Usefulness of SCR-268 A Low-Frequency Radar System, For Tracking Aircraft From This Laboratory
  - Box 11 Report E600-Rl: On the Problem of Shielding at Very High Frequencies
  - Box 11 Report E602-Rl: AJ High-Pass Filters
  - Box 11 Report E602-R2: Note on the Design of High Pass Filters for the Reduction of Interference from Jamming Signals Modulated at a Low Frequency
  - Box 11 Report E603-RI: A Proposal for a Simple Apparatus for Photographing High-Frequency Wave Traces in the Field or Laboratory
  - Box 11 Report E800-R2: Pulse Reconstitution Circuits
  - Box 11 Report P110/Y100-R1: Jamming Tests Against the Orlando Air Defense System
  - Box 11 Report TS-27: Tentative Specifications for S- and X-Band Shipboard Radar Intercept Systems
  - Box 11 Report X100-R1: Elementary RCM Wave Propagation Considerations
  - Box 11 Report X100-R2: Calculation of RCM Transmitter Effectiveness
  - Box 11 Report X100-R3: Calculation of Effectieness of Land-Based Radar Jammers
  - Box 11 Report X300-Rl: Equipment Display for JNW Committee
  - Box 11 Report X300-R2: RCM Activities at NRL
  - Box 11 Report X600-Rl: Status of Jamming Transmitter Program
  - Box 11 Report L-1: Cathode-Follower Amplifiers
  - Box 11 Report L-2: The Butterfly Circuit
  - Box 11 Report L-3: Applications of Butterfly Circuits
  - Box 11 Report L-3: Illustrations for Applicatons of Butterfly Circuits Figures 9 to 19 Inclusive
  - Box 11 Report L-4: On Magnetrons I
  - Box 11 Report L-4A: On Magnetrons II-Magnetrons with Multi Segmented Anodes
  - Box 11 Report L-5: Characteristic of the Low Pressure Arc With Externally Heated Cathode
  - Box 11 Report L-6: Velocity-Modulation Tubes
  - Box 11 Report L-7: Velocity-Modulation Tubes
  - Box 11 Report L-8: Notes on Cathode Ray Tube Photography
  - Box 11 Report L-11: Voltage Stabilizers
  - Box 11 Report L-12: Design of Noncircular Gears
  - Box 11 Report L-13: Matrix Algebra as Applied to Filter Theory
  - Box 11 Report L-14: Remote Positioning Systems
  - Box 11 Special Report 1: Preliminary Test Results on Type RN ZP-595 Magnetron
  - Box 11 Special Report 3: Noise Modulation of the ZP-597 Magnetron at Low Power Levels
  - Box 11 Index to Uncompleted Navy Projects with NDRC Division 15
  - Box 11 Catalogue of Equipment Developed by Radio Research Laboratory
  - Box 11 Index of Code Words and Abbreviations (First Revised Edition)
  - Box 11 Noise Conference at Radio Research Laboratory, Oct. 19, 1943
  - Box 11 Radio Electron Tube Directory
  - Box 11 Radar Anti-Jamming
  - Box 11 E3200 X-Band Jamming System (Supplement to Report 256)
  - Box 11 Mission No. 7, August 2, 1944
  - Box 13 Radio Research Lab Document News , August 12, 1942-August 15, 1945
  - Box 13 Instruction Book for Model CXCE Radio Transmitting Equipment
  - Box 13 Instruction Book for Operation and Maintenance of Radio Set RC-156 (F-902;CXCD)
  - Box 13 Information on Construction, Operation, and Maintenance of A-1501 Oscillator
  - Box 13 The RRL Rug Airborne Jamming Transmitter (AN/APQ-2)
  - Box 13 Instructions for A-2201 Zero Catcher Attachment
  - Box 13 Interim Instruction Manual for AN/APT-5
  - Box 13 Information Bulletin Nos. 1-20
  - Box 14 Document Digest For the Period July 8, 1942 to March 21, 1945
  - Box 14 Suggestions for Improving the Equipping of Ferret Aircraft
  - Box 14 RRL Document Room Subject Index of Reports, Nov. 15, 1944
  - Box 14 RRL Document Room Subject Index of Reports, May 15, 1945
  - Box 14 Project Committee Urgency Lists, Internal (Issued Monthly)
  - Box 14 Urgency Ratings Lists
  - Box 14 RRL XX Lists A-F, 1-20; April 15, 1944-May 10, 1945
- UAV 728.295.2 Invention Disclosure Cards, 1942-1946 .2 cubic foot (1 container
  Scope and Content: This subseries documents inventions originating from the Radio Research Laboratory and its employees. The file contains subject cards and inventor cards. Subject cards list inventions by name, inventor, and date of disclosure and include short descriptions. Inventor cards list inventions and notebook numbers.
  
  Arrangement: Alphabetical by subject and inventor.
- UAV 728.295.4 Images of equipment, graphs, and charts, 1942-1946 (1 container of lantern slides)
  Scope and Content: This subseries provides images of equipment. Equipment is not identified on the slides. Graphs and charts are labeled. All slides appear to have been used in presentations of Laboratory projects.
  - C 1-8 [equipment slides]
  - RRL Portable Jammers
  - Summary of Raven Antennae
  - Summary of Raven Transmitters
  - Summary of Raven Receivers
  - PB4 Y2
  - SK-5 #6 [equipment slide]
  - B-24 Bomber
  - Investigational Aircraft Carrying RRL Equip.
  - RRL Technical Observers and Field Stations
  - SK-5 #10 [equipment slide]
  - SK-5 #11 [equipment slide]
  - RRL Technical Observers, Field Stations, and Foreign Equipment Allocations
  - RRL Receivers in Quantity or Crash Procurement
  - Jamming Transmitters in Quantity or Crash Procurement
  - Confusion Reflectors
  - Confusion Reflectors
  - Map of Europe
- UAV 728.295.3 Flying Dutchman Target-Complexity Indictor System Sound Recordings, 1945 (1 container of wire recordings)
  Scope and Content: This subseries contains wire sound recordings of indications produced by the audio channel of the E-2400 TCI system by complex targets (ships).
  
  Related Material: For a description of the E-2400 TCI system, see Radio Research Laboratory Report 188 in the Technical Reports Series (UAV 728.295.1) entitled: Flying Dutchman Modification of Search Radar to Provide Target-Complexity Indication .

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