2uf 25v Caps

[dpierce05]

I'm building a blackface champ and was wondering if you guys know where i can get 2uf 25v caps this cap goes to pin 8 of the 12AX7 and is in parallel with a 1K5 resistor. Can i substitute another value or does it need to be 2uf? Another question I would like to ask is what is the Low Impedance side of this circuit any help would be great. Thanks.

[52 Bill]

I'm building a blackface champ and was wondering if you guys know where i can get 2uf 25v caps this cap goes to pin 8 of the 12AX7 and is in parallel with a 1K5 resistor. Can i substitute another value or does it need to be 2uf? Another question I would like to ask is what is the Low Impedance side of this circuit any help would be great. Thanks.

That is such a common value, you should be able to find it anywhere, Mouser, Newark, even Radio Shack. The modern value would be 2.2 uF.

The real question here: Is the correct value 2uF or 25uF? I don't know what version of the amp you're building, but I think 25uF is the more standard value for bypass caps in blackface Fenders.

[Jag]

I've had Champs with both values. IME 2uf has been most common there.

I've used two 1uf paralleled for that in the past. I like 25uf better though.