Tube Amp Archive

Yes, very basic power supplies. Mostly 5U4 or 5Y3 rectifier tubes and two 6V6, EL84, 6L6 or EL34 power tubes. Just basic rock'n'roll amp circuits.

I will have to measure the DC current when I get home. All amps are cathode biased 2x 6V6 or EL84 power tubes for the most part.

Thanks!

Wow, great explanation! Thank you, that is very helpful. I can't imagine seeing a cap that big expel it's innards onto the ceiling! Yikes! I guess I'lll stick with NIchicon or Panasonic https://www.mouser.com/ProductDetail/647-UCY2H330MHD - up to 500V, but only? 350ma of ripple current. I mostly res...

When I look at filter caps on mouser, the ripple current ratings is usually listed. The cheaper priced caps seem to have a higher ripple current rating so does that mean that they are passing that amount or is it that they cap can handle up to that value? And how much of a rating is good for amps? t...

Yeah, that makes more sense, but I have a couple input transformers from PA restorations and conversions that I "have" to do something cool with.

Thanks for the tip. Yes, I'm just planning on using this for recording and small gigs. I would like to figure out how to install a DI out as well once I get it up and running. I have restored it and it works fine now. Next step is to modify the circuit into an B15.

I'm working on converting this PA head into a bass amp and I was suprised to see the B15N schematic https://www.vintage-blue.com/assets/b15nc_schematic_11_64.pdf with 0.022uF coupling caps. I thought they would be larger - more like .220 uF. Any thoughts or comments are appreciated. I guess just ver...