[Collins] 32S-1 Warbling

[Dr. Gerald N. Johnson, electrical engineer]

That's more likely a selenium diode (Sarkes Tarzian 20 ma rating in a
little rectangular black case that includes a mounting stud) to give a
lowered voltage. The germanium diode may have been in some models of the
power supply, but it won't fail by having a high forward resistance, it
will fail shorted or open. The selenium starts out with quite a bit of
forward resistance and it increases with time and heat.

A 1N4001 is too low a voltage for replacement, needs at least a 1n4004
else it will fail rapidly. It will short from excess reverse voltage
that will likely destroy the electrolytic (to say nothing of the 6146s
with the bias going 50 volts positive) causing to expand rapidly. About
like a shotgun shell the last time I accidentally put AC on a DC
electrolytic....And it filled the chassis with shredded crepe paper
impregnated with conductive electrolyte, along with shredded aluminum
foil. That's not good for the rest of the circuitry.

73, Jerry, K0CQ, Technical Advisor to the CRA.
-- 
Entire content copyright Dr. Gerald N. Johnson, electrical engineer.
Reproduction by permission only.