[ARC5] BC-348-Q Capacitor Questions
arc5 at ix.netcom.com
arc5 at ix.netcom.com
Sun Aug 22 21:07:26 EDT 2010
p.s. I just got through doing this kind of procedure on my
BC-229 receiver. Only had to lift the end of one resistor
on this one; the 229 is a pretty simple TRF set.
I used the cap-testing power supply in my ZM-11 tester,
which can provide up to 500 or so volts, has built-in
voltage and current metering and nicely current-limits
on shorts and leakage. Helped me find the shorted bypass
in about ten minutes. After four hours sitting with no tubes
and 200 volts on the B+ busses (tubes pulled), the leakage
of all the other caps totaled about 3/10ths of a mA.
That's not a worry. Radio works again.
73 Dave S.
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