[R-390] "A" Versions of Military Receivers with/without Mechanical Filter...

[Llgpt1@aol.com]

In a message dated 6/8/2003 2:59:08 PM Central Daylight Time, 
ToddRoberts2001@aol.com writes:

> Interesting examples BUT doesn't R-274 denote a "family" of receivers and 
> not 
> one particular model? The R-274 series could be either a Hammarlund SP-600 
> variant or a Hallicrafters SX-73 variant - two mechanically and physically 
> different radios? There was an R-274 series, R-274A series, R-274B series, 
> R-274C 
> 

According to Chuck Teeters who was the director of radio at Ft. Monmouth, the 
R-274 series was "family" of receivers, hence the designation FRR. But the 
letters (suffix numbers) tells who made them. Look at Osterman's book, pages 459 
through 464.

Les Locklear


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