Are these Bi-Polar capacitors?

3 replies
M(
Offline
MartinM (archived)
Bronze
Posted June 22, 2011 at 23:29 GMT
#1760018

Can someone enlighten me here please; Are capacitors C1 (47uF) on board 60 and C2 (68uF) on board 66 Bi-Polar? The diagram is from the PSU section of a Beocenter 9500.

　

　

TO
Offline
tournedos
Bronze
Posted June 23, 2011 at 02:49 GMT
#1760019

At least according to the schematic symbols, they are. They both seem to be passing AC so there must be a reason - odd circuitry nevertheless.

S(
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Step1 (archived)
Bronze
Posted June 23, 2011 at 04:29 GMT
#1760020

Seems to be a voltage doubler, not sure why...?

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