"tchrme" wrote in message
...
Partial success on this stubborn problem and it would have
to be my
favorite rcvr too. I traced the thunderstorm crashing
sounds down to
the 2nd converter subchassis. After I pulled it again, I
replaced all
the caps and the resistors since it is such a pain to
access. I
powered it up on test leads to the main chassis and still
heard the
frying thunderstorms. A 22k resistor that I replaced was
starting to
overheat and turned brown. I checked the one I took out
and it too was
burned looking. So.... I need help on what would cause the
overheated
resistor (R24). I can email a schematic to anyone who can
help me out
on this. I double checked all wiring and parts were
replaced one at a
time. Help. Thanks ahead of time. 73 Mike KF6KXG

Have you made tube socket voltage and resistance
measurements? This is a first step and will often point at
problems. I've downloaded the schematics for both versions
of the RX, you appear to have the earlier one (the 22K
resistor is a different value in the later version). I can't
see an immediate suspect but any capacitor in a position to
draw current through the resistor is a suspect. While paper
caps fail mostly by developing a low series resistance I
have encountered shorted ones.


--
Richard Knoppow
Los Angeles
WB6KBL