6K6 substitute 6V6

[jbever]

I just want to check on something. In a cathode biased amp that normally takes 6V6's, can I substitute 6K6's and cut the power down a little?

Is this a safe thing to do? thanks
Jerry

[brad347]

In almost all cases, the answer is no.

Most amps designed for 6V6s will murder 6K6s in short order. They cannot handle the voltages that 6V6s can.

[Blue Strat]

In almost all cases, the answer is no.

Most amps designed for 6V6s will murder 6K6s in short order. They cannot handle the voltages that 6V6s can.


+1. Though amazingly, they do seem to hold up at least for a while.

I wouldn't try it though. They also run MUCH hotter, bias wise, than a 6V6 in a 6V6 circuit.

These seem to be popular in THD Univalves in low voltage mode.

[jbever]

Thanks guys, I won't go there.

Mike, long time no talk, hope all is well with you and yours.
Jerry