Rich,
Thanks for your story. I have far more than my share of Boatanchors, so I
do understand your frustration. Just yesterday I got my Eldico SSB-100
(vintage 1955, first generation sideband transmitter) running again. A
mouse had nibbled an RFC in the vfo and opened it, which I found after a bit
of signal tracing and measurement.
I also have an Argonaut 505, old enough if not heavy enough to be a member
of my Boatanchor collection. Fortunately it was working when it came to me,
so I haven't dug too deeply into it. I did manage to sit the power supply
on top of the Argonaut the first time I put it on the air, only to have a
nice hum induced into the Argonaut's vfo from the power transformer's
magnetic field. Someone on the reflector tipped me off to what was
happening, plus there was no hum when I ran it from a battery.
Re your 509 troubleshooting, sometimes simple things can help. Have you
tried making a few dc resistance measurements associated with that 10 meter
coil and its bandswitch position? That might give you a hint of where your
problem could be.
Jim, W8KGI
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