You have stated that "Vacuum tube circuit" does not have or use capacitors,
that is far from being truth and specially in High power Amps. RF or the
As I said before Capacitors are use for passing signal through and are use
in DC circuit to filter AC out it all depend what application is use for.
in filtering Capacity is usually Large in coupling signal usually small or
DC filter circuit Voltage can be in Thousands and Capacity up to Hundred uf.
However most common around 10 uf. if chock is use between.
Higher Value is hard to find and become Very expansive .
"Tony Hwang" wrote in message
Sounds like transistor type circuitry using that high value caps. Vacuum
tube circuitry does not have caps. with that high value. Looks like
direct coupled OTL amp. section.
That's why I suggested reversed polarity. If it had been in a filter circuit, then a reversed capacitor would most likely have generated a fair amount of heat as it shorted, with 4th of July sounds very frequently accompanying the short.
On 06/30/2015 9:26 PM, firstname.lastname@example.org wrote:
Neither of which happened...actually it appears they essentially opened
entirely to pass virtually no current. The amp was/is still functional
in all operating modes; there was simply no output above a most minimal
that was totally unaffected by volume controls, etc., ...
If they'd been reversed polarity, I'm certain they'd've gone poof! in a
heartbeat; this failure occurred after a few months after the
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