[R-390] R-392 calibrator

[Dan Merz]

Paul,  my R-392 calibrator produces a tone via the bfo,   and the schematics
show no circuitry that indicate to me that a modulated calibrator tone is
generated in the receiver.  As far as I know, the only way to get a tone is
to beat the calibrator output with another rf wave such as the bfo.  Now I'll
have to go down as a memory check and make sure my set works the way I
described.  Yes,  it does - now discovered the set is not operating very well
after setting for a year or so - better put that on my list to remedy.  But I
only got a tone when I had the bfo on and the bfo and calibrator operated ok
and as I remembered.    Dan.

"Paul H. Anderson" wrote:

> I'm working on an R-392 where the calibrator puts out a carrier wave that
> I can use the BFO to find at every 100KC, but with the BFO off, I hear no
> audio tone.  What part of the circuit is supposed to generate the approx
> 1kc tone?  I've heard this calibrator tone before on other R-392's.
>
> Thanks,
>
> Paul
>
> _______________________________________________
> R-390 mailing list
> R-390@mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/r-390