Scott Anderson wrote:Here is my first tube amp project. It is based on the Dynaco MKIII and Sunn 200s. Bass Amp Project
Scott Anderson wrote:My main concern now is the 12AX7 preamp circuit. It has a lot of noise and when I adjust the bass and treble at certain points, the amp will squeal sending the dog running and barking. It will be easier to breadboard the preamp circuit. I can already bypass the preamp now and go straight to the 6AN8 board.
The amp sounds great now with the exception of the preamp.
It has a lot of noise
Do you need tone controls? Yes
Why a tube rectifier? Well it was on the schematic
I’m not sure how to measure tube bias without it.
Scott Anderson wrote:Shannon, I'm gathering the information. I'll post again when I have it and send you some pics. Can you receive a zip file?
Scott Anderson wrote: If the was a success back in its hay-day, why am I having the problems.
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