Tube Amp Archive

SO... I only had a 100k and a 68k on the bench, so I series'd them up and tacked them onto the R50 pads, and (drum roll please...) Huge improvement! The gain knob now has much more resolution, and the amp just sounds cleaner. Still plenty of gain on tap, but not like a can of pissed off bees. I can ...

First, replace V1 and V2 with lower gain tubes, like 12AT7. In the schematic clip you posted, the Blue channel bypasses the bass shaping (C46) and the treble peaker (C45/R51/R69), and bumps the gain way up prior to V2a. If you like the tone shaping in the Blue channel, but want to reduce gain, chan...

Finally got hold of the schematic, and have an idea or two after posting on a couple other forums while waiting approval. I love the amp's tone and features, but the blue channel is just a noisy monster and WAY to much gain for my needs. I'd like to get a lot more resolution out of the gain pot, rat...