Harold A. Zahl Photos & papers saved by Dr. Howard W. Andrews & donated to the   Infoage Archives and  Library

SCR-271

Books:

Electrons Away, By Harold Zahl Vantage Press, NY 1968

Radar Spelled Backwards, By Harold Zahl Vantage Press, NY 1972

The Story of the U.S. Army Signal Corps, Edited by Max, L. Marshall, Franklin Watt, Inc. 1965

Traditions of the Signal Corps (Draft)  - August 1959

The Year Book 1971 - The Wireless Pioneers, Society of Wireless Pioneers

A History of Tactical Communication Techniques, by David L. Woods, Martin Company, Orlando, Fl 1965
 

Booklets and Pamphlets:

One Century of Research, by Dr. Harold Zahl, Fort Monmouth 1960

One Hundred Years of Research, by Harold Zahl, reprint form IRE Transactions on Military Electronics, Volume MIL-4, Number 4, October 1960

This is Fort Monmouth (post 1946) (2 copies)

EIMAC News - April/May/June 1962: How to Build a Secret Tube

A Brief History of the U.S. Army In WWII

Defense of the Americas _ The U.S. Army Campaigns of WWII

Significant Dates in the History of the Army Signal Corps - undated draft

20th Anniversary 1946-1966 AFCEA - Fort Monmouth Chapter

Science and Public Policy V1, Auguest 27, 1947 - A Report To The President by John R. Steelman

The NJ Shore Area Salutes Fort Monmouth - 50 Years of Service to the Nation, Boone Publications, 1967

Man and Space, RCA, no date (post Apollo 15)
 

Articles:

The Secret Tube That Changed The War, Popular Electronics, March 1964 page 57-59, 103-105

Development of the SCR-270, By Arthur L. Vieweger and Albert S. White

Noise From Outside, by Lorne Maclaughlan in Astounding Science-Fiction (issue ?) Pg 45-62

New Methods of Radio Transmission, by Jerome B. Wiesner (unknow pub), pages 46-51
 

Photos:

Package labeled May '37 268/270/271 - 49: 4" x 5"  photos, some duplicates

Package with 43 photos of SigC history, all found in Marshall-1965

Package of 45 photos - appear to be photos used in radar articles in 'Electronics" issues published in 1945 and 1946 on the SCR-268, SCR-584 and AN/TPS-3.

Mystery Ray - August 1935

Sea Bright Hydracoustic device (2 Photos)

Trailer 78-A with M-7 Power Units - Part of Radio Set SCR-584 (4 copies)

Installation of Modification Kit MX-423 on Radio Set AN/TPS-3 (2 copies)

Mystery Ray Locates "Enemy" - Popular Science October 1935

SCR-268 Radar operating near Nettuno, Italy (2 copies)

Wurztburg radar (unlabeled)

Unknown tube (unlabeled)  (2 copies) (possible reconstructed Wurztburg tubes)

VT-158 on side (unlabeled)

VT-58 oblique on black background  (unlabeled) (4 copies)

Radio Set AN/TPS-3 SCRL9000 16 June 1944 (2 copies)

SCRL9000 (unlabeled)

Unknown Tube (unlabeled)  simple vacuum type

50th Anniversary - Fort Monmouth 1917-1967 collage
 
 

Documents:

History of RADAR (WWII Draft) #3 of 5 copies SECRET

A Brief History of the Development of Aircraft Detection Equipment By the Radio Position Finding Section of the Signal Corps Laboratories SECRET

Means of Detecting the Approach of Aircraft and Marine Surface Craft Beyond Visual Range, Fort Monmouth, June 30, 1937 SECRET, #14 of 20 copies

Engineering Tests of Sea Bright Hydracoutic Circumferentor, SCL Eng Report No. 432, January 12, 1935

Engineering Report No. 288: Range Tests with 75-cm Radio-Optical Equipment, August 24, 1933 (report with photos and negatives)

Handbook Installation and Field Maintenance Instructions with Illustrated Parts Breakdown - Motor Generator Set - PU-219/TPS-10D  (15 June 1955)

Engineering Test Manual for  May 1937 Experimental Types of Detectors For Use Against Aircraft (Heat and Radio), Fort Monmouth May 17, 1937

Annual Report of Signal Corps Laboratories for Fiscal Year Ending June 30, 1936 (Confidential)

Handbook Operation and Service Instructions - Radar Set AN/TPS-10D, AN/FPS-4, AN/MPS-8

USASRDL - Welcomes the Army Scientific Advisory Panel,  Fort Monmout, 21 April 1959

A New Approach To The Problem of Generation and Stablization of Microwave Frequencies, 20 July 1955

News-clippings:

Mystery Ray 'Sees'  'Enemy' at 50 Miles - NY Times 28 July 1935
Mystery Ray Finds Ship at Sea in Dark - NY Times 30 July 1935
Fort Monmouth Radar Shot To Moon Formally Opened Today's Space Age - Monmouth Message January 7, 1971, page 1

Black Magic Spots the Enemy 1937

Misc:

Diagram: Internal Structure of the VT-158

Organization Chart - undated - Dr. Zahl is listed as Chief Scientist

News from ECOM - 36 issues,  most with photos

Tales of Yesteryear... In Case You Have Forgotten, Signal 1970
An article about the Zahl Tube the VT-158