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History of the manufacturer  

MILITARY U.S. (different makers for same model)

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Name: MILITARY U.S. (different makers for same model)    (USA)  
Abbreviation: military

Here we list radios and other military communications equipment that has produced not only by one but by several companies under contracts.

In many cases, You cannot simply identify the maker from a logo, sometimes, the model information tag carries the name of the maker.
Many sets carry a number / letter designation. In cases a set carries an individual designation number (for example BC-348), You will use this as model type and the designation of the complete wireless station (for example SCR-287) as model name.
From many models, there exist different variants with individual suffix letters (for example BC-348-P). We list here (MILITARY) the generic model with -(*) as suffix, with the asterisk standing for different suffix letters (for example BC-348-(*)).
Please consider using "Commercial receiver" for receiving equipment, "Transmitter" or "Transmitter / Receiver" for transmitting equipment, "Repair equipment" or "Military equipment" for other telecommunications equipment for military use.
There will be military equipment with a maker, that can be easily identified or that is only produced by one single company. You might consider searching for these sets in the complete database and upload these sets under the producing company.
In case there is an existing entry in database for a model unter a different brand, please make a remark or a link in the "remarks" field, to cross-link the relevant model pages.
In case, there is a huge number of different variants of a model, consider a text forum entry with explanations to show and explain the differences.

Some models:
Country Year Name 1st Tube Notes
USA  40 Morse Key J-41    
USA  18–45 Flameproof Aircraft Key J-5-A   Flameproof Aircraft Key J-5-A.These keys were made in large quantities. The contacts are t... 
USA  54–85 R-390A/URR 6DC6  AM/CW/MCW; dual/triple conversion; (32) 1-MHz bands; xtal and mech. filter. 54000 sets mad... 
USA  53 TV-7 C/U 83  Tube tester. This model C/U was built by Stark in Canada. It includes an additional adapte... 
USA  53 TV-7 D/U 83  Tube tester. This model D/U was built by Forway Industries and Molded Insulation Company. 
USA  53 Tube Tester TV-7 U 83  Tube Tester TV-7 /U. This model /U was built by Supreme. This model was also produc... 
USA  53 TV-7 B/U 83  Tube tester. This model B/U was build by Hickok. 
USA  53 TV-7 A/U 83  Tube tester. Same circuit like TV-7 C/U 
USA  61 Tube Tester TV-2 B/U 83  Tube tester with 6 Instruments: Manufacturers include J.H. Keeney Co. Inc. and Victoreen I... 
USA  74 Multimeter AN/USM-223   Water- and shockproof Multimeter. 
USA  41–45 SCR-211-(*) BC-221-(*) (general) VT-167  Precision heterodyne frequency meter designed to measure or radiate radio-frequency impuls... 
USA  41–56 SCR-536 Radio Set BC-611 (Variants A, B, C, D, E and F) 3S4  The first ever made AM "Handy-Talky", for the US-Service. One channel xtal-operation in th... 


Further details for this manufacturer by the members (rmfiorg):

By courtesy of Gerhard Buck, DJ3YR. Picture from the US journal "Electronics", 1942.tbn_us_army_bc611_walkie_talkie_in_electronics_1942.png


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