Northern Radio

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Northern Radio had an interesting relationship to Technical Materiel Corp.  

It was a sister company, since its founder Salvatore Barone, worked as Chief Manufacturing Engineer for Ray de Pasquale (Director of Manufacturing) at Press Wireless during WWII.  As the war wound down, Press Wireless fell into financial difficulties and laid off most of its engineering staff, thereby creating several new companies (not unlike Silicon Valley today).  An examination of Northern's early products shows that their industrial design was very similar to TMC's, and also like TMC, Northern equipment was very well designed and beautifully made.

There's a bit of a mystery about the early days of TMC and its relationship to Northern Radio, but apparently Sal Barone and Ray de Pasquale remained friends.  The ad below was clipped from the March 1944 issue of Electronics magazine:

The company was a competitor as well.  In the early days of both companies, there were competing products, including the XFK (TMC) vs the Model 105 (Northern), and the VOX (TMC) vs the Model 115 (Northern).  The designs were similar, but not identical.

TMC also used Northern equipment as subsystems in their military systems, so Northern was a collaborator/supplier, in some cases.

A history of Northern Radio needs to be written..  Hint, hint!  I'm happy to collect information for this project, but I've been in touch with one of Sal's descendents, who's interested in doing this history, so for now, I'll pass it along to him!


The following brochures and catalogs provide by the Antique Wireless Association Museum Library, with many thanks to Duncan Brown!

General Equipment Catalog
Brochure of Multi-Channel Telegraph Systems 
RFC- NR 1.jpg (1617398 bytes) RF Communications, Inc. Brochure, listing Northern Radio Equipment 

(Northern was acquired by RFC in late 60's)



Some of these manuals were contributed by other collectors.. THANKS!   These manuals are hard to come by; if you have any of these on hand that are not listed here, please consider either scanning your manual and sending the scan to me, or lending me the manual for a short time for scanning!

Demodulator Type 104 Model 3

Frequency Shift Keyeter Type 105 Model 4

Variable Master Oscillator Type 115 Model 1

Dual Frequency Shift Tone Converter Type 152 Model 1

Dual Frequency Shift Tone Keyer Type 153 Model 2

Adapter Unit for Tone Keyer, Type 163 Model 1

Frequency Shift Diversity Converter Type 174 Models 3/3A

Frequency Shift Diversity Converter Type 174 Model 3

Frequency Shift Tone Keyer, Type 211, Model 1

Line Battery Power Supply Panel, Type 227, Model 1

18-Channel Transistorized Voice Frequency Telegraph System, Type 230 Model 1 and 16-Channel Transistorized Voice Frequency Telegraph Diversity System, Type 235 Model 1

Line Amplifier, Type 236, Model 1

Loop Current Control Type 238, Models 1 & 2

Dual Frequency Shift Tone Keyer Type 244, Model 1

Power Supply Type 251 Model 3