Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: plexi50 on June 08, 2022, 06:02:19 pm

Title: Electrolytic Capacitor Value
Post by: plexi50 on June 08, 2022, 06:02:19 pm

Hey all! I am recapping a 1974 Sunn Model A 212 amp and found this Odd numbering system on a particular cap. The schematic say's it is a 2.2 uf polarized electrolytic cap. I can't figure it out other than it may be rated at 50 volts. How do you decipher this one?

Title: Re: Electrolytic Capacitor Value
Post by: sluckey on June 08, 2022, 06:32:46 pm

Those numbers don't help. Just go with the schematic. Would that cap be C111, or C204, or C205? If so, 2.2µF/50V looks correct.

Title: Re: Electrolytic Capacitor Value
Post by: plexi50 on June 09, 2022, 06:51:55 pm

It is C221. It spells it out as 2.2uf 25 volt polarized. It's a good thing there is a schematic for this amp. Thanks Steve! Hope all is well.