[Milsurplus] Re: Use of an external VFO with a BC-610 transmitter?
WA5CAB at cs.com
WA5CAB at cs.com
Tue Jan 1 10:34:59 EST 2008
Roger,
If you use as your building block a BC-221 and can locate one of the
CY-182/AR cabinets, there is a space in the rear where you could probably build a
mains supply. I considered it once and concluded you would probably have to use
separate filament and HT transformers in order for them to be small enough to
fit.
In a message dated 1/1/2008 1:49:26 AM Central Standard Time,
roger at new-gate.co.uk writes:
> Hi Clete &Robert,
>
> Thanks for the info on this. Another group member has told me that back in
> the '40s "QST" ran two articles on a choke-coupled buffer amplifier that
> allowed an LM wavemeter or BC-221 to be used as a VFO. I've located my
> copies of the articles (Aug '46 and March '47) and looks like a
> straightforward job, so I will try that route as there seems to be plenty of
>
> gain in the design and only a tuned output stage. Would be nice to find one
> of those boxes, Robert, but then I've plenty of chirp already, using the
> BC-610 master oscillator in the TU units!
>
> 73 to all for '08
>
> Roger/G3VKM
>
Robert & Susan Downs - Houston
<http://www.wa5cab.com> (Web Store)
MVPA 9480
<wa5cab at cs.com> (Primary email)
<wa5cab at comcast.net> (Backup email)
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