[R-390] Unknown R-390 model

[John Lawson]

On Thu, 14 Aug 2008, Tim Shoppa wrote:

> N4UE asks:
>> The radio appears to be a R-390A with extra 'boxes' on the back. I have
>> the metal tag that states... "R-1891".
>
> If you really mean R-1981/TSC-25, that's a 390A with extra jacks on the back
> to hook up magic electronics to the various LO's/BFO's/PTO outputs and
> the re-inject a correction frequency for extra stability.


    I know someone who has the Magic Box that attaches to all those 
Gozintas and Comezouttas...  looks a bit like TMC gear - grey 7" high 19" 
rack-mount goody.  You'd absolutely never guess what it was unless you 
were completely familiar with it... he told me what it was because I 
noticed it sitting next to an in-the-middle-of-an-overhaul 390A - I 
thought it was a 3rd-party military SSB converter at first.


   Cheers

John KB6SCO
Carson City