[Milsurplus] Re: Boehme equipmen

[WA5CAB at cs.com]

That's right.  I never saw a CV-305/U but aside from being painted gray, the 
front panel is similar to the one on the 5-C.  Tube complement was a little 
newer, 6X4 rectifiers, a pair of 0A2's and 12AT7 or 12AU7's in place of or in 
addition to the 6J6's.  Otherwise, circuit is very similar.

In a message dated 2/27/2007 10:30:42 AM Central Standard Time, 
neil277 at juno.com writes: 
> I went to 286.1 school in early 1960 and the Boehme-5C was one of the
> equipments we learned. Pretty simple circuits. Black front panel. Open
> frame construction. Used the receiver tuning for max signal strength;
> tune BFO for best lower freq (Horz propeller); adjust Boehme tuning for
> best upper freq (Vert propeller). I thiink it had a normal-reverse
> switch. Keyed internal loop supply (120v 60ma). Connections were to a
> terminal strip on the back. I think th front panel was 4U or 5U high -
> It was sort of a universal shift FSK converter at a time when everyone
> was starting to get away from 820cps shift. There weren't a lot of them
> around, and I didn't work on them every much. Can't remember much else
> - last saw them in 1962 or 1970. At the time there didn't seem to be
> any mil standard FSK converter that had adjustable audio shift tuning.
> I think it was replaced by mil nomenclature CV-305; but I remember them
> even less. 

Robert Downs - Houston
<http://www.wa5cab.com> (Web Store)
MVPA 9480
<wa5cab at cs.com> (Primary email)
<wa5cab at houston.rr.com> (Backup email)
   
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