Capacitor - CE Mfg., 525V, 30/20/20/20 μF

I wouldn't be able to speak as to the compatibility with your amp but I would suggest getting the values from your unit and giving us a call so we can find you the proper replacement.

My ST-70 originally had the cap on this page (525V 30/20/20/20uF) and when I rebuilt it from the chassis up, I replaced that original one with a 525V 80/40/30/20uF from right here on AES (UPC/EAN: 609722128056) and there have been no problems what so ever. Amp sounds better than new. Generally, you can go UP in microfarads on a power supply filter cap with no problems and you can also go up in voltage too (good luck finding a can capacitor with DCWV greater than 525V). Going up on microfarads simply gives your power supply greater reserve DC power available to the power tubes, and that can/does result in better bass stability and punch. Also helps with any other frequencies where there is a sudden loud passage in the music, the more the microfarads the better the transient response of the amp can be. Just make sure to NEVER substitute a lower DC working voltage, unless you like smelling smoke and having sudden gunshot-like noise when she blows! You might also get away with maybe 10-15% LESS microfarads in one or more sections if that is all you can find, but it's not recommended as that might cause a low level AC hum in the speakers when there is no music input.

They are visual representations of the different sections in the cap. On the label, it will assign one of these symbols to each section of the cap and the bottom will have that symbol next to its respective lug.