Vibrafet IDEA!

[Steben]

Thinking of the Fenders...
Could this work, once you bias the controlling fets (at the source) correctly?

[R.G.]

Well, it won't do what the Fender amp circuit does.

You may want to re-read my posts. I was incorrect in my first posting - the filtering is not a simple one pole RC/CR filter. It's actually more like the two halves of a twin-T, although not exactly.

In addition, I think there will be some pretty big feedthrough that is not cancelled. But it's a simple circuit - go breadboard it. It may well have hidden beauties.