Posted by ychungmd (A) on October 25, 2007 at 22:44:01

In Reply to: RE: A question about the role of tube? posted by John Swenson on October 25, 2007 at 18:18:38

Thanks, I know a fault in my idea. Need Help

Hello John

I did not consider the voltage swing in transformer.

I compared your CCS pre and Zen-like CCS pre which use one IRF 820. Actually this modi was done by C.Y on my request.

Sound is different. Your pre has more impact especially in bass. Zen-like pre is more airy, but deficient in bass compared to yours. I prefer airy sound.

I’d like to convert it to SE transformer output amplifier as posted. I do not have any idea for a grid reference in this design. Any simple solution? I need your help.

A great appreciation.

Regards

ychungmd