ts31966

First let me thank steelhorse for the heads up on David Bray amps. I checked out the audio clips and I like them alot.

Marty, I don't know what is going on exactly. Yes, I will get a tube that makes channel 1 and 2 sound great, (rich harmonics, full and balanced) then I go to channel 3 and it has less gain than channel 2. This is with just changing v1. The first one that did this was a black plate raytheon 12ad7. But later I discovered a gold pin 12ax7s that I got from eurotubes, that was supposed to be hand selected for low noise and high gain, this tube did the same thing. The box it came in was labeled high gain with the testing for each triode on the box.

The Brimar/Raytheon tube sounds great but when you max out the guitar volume it goes crazy. It is the only tube that does this. I got these old tubes a couple of years ago.

I am going through the schematics right now to try to figure out which tube is best suited for each position. I have been doing this by trial and error but it is taking me too long.

Thanks for the info on the 12dt7 Marty. What you said is exactly what I have read but something strange is going on with those tubes.