The Amp Garage

Wooden sides on the chassis?

I'd go with 250ma, 200ma minumum. I remember the PT being pretty decent sized. It was supposed to be a bass amp. That should keep it running cool and keep the B+ from sagging too much.
Dave

I restored a GA-100 for a friend. Sorry, no pictures and he no longer owns it. :( I never liked the compression circuit with a guitar. You could leave it out. His had a reissue Jensen P12N in it. It was a great sounding amp. Good headroom and, yes, it did take pedals very well. I have over the years...

The cascode has great gain but doesn't really sound like a small pentode. If that's really the sound you're after, go with the pentode.
Dave

If all else is equal, the higher DC resistance pickup would go in the bridge position.

Hmmmm. What you mentioned about the standby switch has me wondering about the switch itself. A poor connection inside the switch dropping voltage could cause the problem you're experiencing. If that is the only way you are able to make the problem correct itself that just might be very telling.
Dave

Was Germino able to recreate the problem when he had it? It sounds like a bad Bass or Mid pot. Do you have a cathode bypass cap on the triode driving the cathode follower/tone stack? That being wonky could cause that kind of problem too.
Dave

Best clip ever!

Thanks Baxtercat!

Very cool! Where did you get the grill cloth?

Neat!

Since I am in Milwaukee and a big Robben fan, I'd say that I'd be there with bells on! I saw him with Larry Carlton at the Pabst. I had front row seats. Just awesome!
Dave

bluesfendermanblues wrote:Why not use Hammond transformers?? isn't that what fender used back in the day on their blackfaced amps

The Blackface era was Schumacher. Triad before that. I don't think Fender ever used Hammond. Traynor certainly did, though.
Dave

I thought the MM sounded somewhat muffled, cleaner and "drier" sounding. I much preferred the Heyboer and the Magnetic Components. Everyone hears things differently. I'm using Alesis powered monitors to listen to the clips. What you listen through makes a difference, too.
Dave

Here it is. I didn't draw it, so I don't know if it's accurate. Enjoy!
Dave