Tube Amp Archive

Thank you so much for all your kind replies! That was a lot of help. This forum is the one
When i have finally built my new amp i will let you know!
Thank you again!

One easy way to do it, set it up as a 4 tube output stage and lift the cathodes of the tube pair you wish to have turned off. Don't mess with switching the high voltage transformer taps / plates. Thanks for your answer! That way they would be switchable. That together with a dual primary output tra...

Zippy wrote: Do you hope to switch on the fly? Or would you be happy configuring the sockets so you can switch tubes and rebias?

I hope to be able to switch on the fly. I would like to use the 6l6s for cleans and the el34 for dirty.
Any thoughts will be appreciated

M Fowler wrote: Also, a dual OT could be used.

Thanks so much! I guess thats what i need. Do you know which company produces dual-primary output transformers for guitar amps?

Does anybody know of a possibility of building a power amp with the ability to switch between a pair of el34s and a pair of 6l6s? I mean, one power stage with 2xel34+2x6l6 and one output transformer with two different primaries to match each tube pair? I think of using one tube pair at a time, not b...