Good day gents,
I’m in search of a couple bipolar capacitors - 33uf 200v.
I’ve searched the inter web to no avail.
Couple of questions, the caps are being used on the secondary side of the power supply of a crossfire amplifier, in conjunction with the standard rail caps.
Has anyone tried making these before? (Two caps wired in series)
Any reliability issues with this method if done before?
I’m in search of a couple bipolar capacitors - 33uf 200v.
I’ve searched the inter web to no avail.
Couple of questions, the caps are being used on the secondary side of the power supply of a crossfire amplifier, in conjunction with the standard rail caps.
Has anyone tried making these before? (Two caps wired in series)
Any reliability issues with this method if done before?
I don't think they are using bipolar caps with pure DC. Are you sure that they are not being used in the audio circuit?
Photos?
Post #2 is a viable option, negative terminals together.
In some amps, I use 10uF 250v film caps. Some amps are perfectly OK with the reduced capacitance, some are not.
Photos?
Post #2 is a viable option, negative terminals together.
In some amps, I use 10uF 250v film caps. Some amps are perfectly OK with the reduced capacitance, some are not.
Did you follow the circuit to see if they bipolar caps were connected to the output filter inductors?
I don't see anything wrong with the bi-polar caps. Why are you replacing them?
I don't see anything wrong with the bi-polar caps. Why are you replacing them?
The caps when installed are pulling down the rail voltages, sending the amp into protect. With caps out the amplifier, amp power up and passes clean audio.
When tested out circuit I’m getting 12uf, 0.16 esr.
When tested out circuit I’m getting 12uf, 0.16 esr.
Are those caps original or has someone replaced them?
Bipolar caps don't like straight DC so if they're installed in place of standard polarized caps, they'll likely do as you described.
Do you have audio on their pads on the board or is it straight DC?
Bipolar caps don't like straight DC so if they're installed in place of standard polarized caps, they'll likely do as you described.
Do you have audio on their pads on the board or is it straight DC?
Those seem rather small to be 33uF and 200 VL. I'm used to the 33uF/100VL axyal ones, being longer and thinner, used in crossover networks. Probably they are placed in the NFB path but, oooh! that's the PS part, not the amplifier. Replacing with film caps would be better, but those won't fit inside!
I think someone installed the wrong caps.
Did you check to see if the voltage across the bipolar cap locations is pure DC or audio?
Did you check to see if the voltage across the bipolar cap locations is pure DC or audio?