6550 in Express

[Buschman]

Have you tried them? What did you think? Thought about getting a pair to see if I like it. What would be a good bias voltage?

[M Fowler]

I prefer the Sovtek 6L6 in my express and changed the NFB resistor to 68k (I used 56K) to clean it up not as much high gain.
I need to get some different tone caps and try .033 instead of the .047 and .01 caps.

Mark

[xk49w]

YMMV, but to me an amp w/6550s driven into clipping does not sound very good. The 6550 is a great tube and is quite linear. It doesn't seem to have much compression before clipping. It makes a good bass (SVT) or organ (Leslie) amplifier. Maybe if it was wired in triode mode you could get a softer distortion characteristic.

[jaysg]

I'd be more interested in a tube that starts with KT...any of them.

[dayn]

How about a Dirty Little Monster with a single 6550 or KT-88...that is what I want!

[Zippy]

How about a Dirty Little Monster with a single 6550 or KT-88...that is what I want!

Start a group build project. I haven't seen a schema of the DLM yet. I, too, would dig developing one.

Have you played/heard one?

[M Fowler]

Ditto on the group Dirty Little Monster build.

Mark