I really don't remember where I ran across the schematic. I have a big folder of schematics. I have not built this preamp but it looked like it would work well.

I am seriously thinking about building it. I just have not found a jt 115k for sale, plus they are a bit pricy. I need to look at other brands.

See if you can find some "two rock" amp schematics/photos and look at how they do tube placement. I would do as much shielding as I could. The power supply however it is designed needs not to be noisy. One reason I never used switching power supplies, plus I don't really understand the design. I am not opposed to transistors, I just don't have much experience with them.

I have a lot going on at the moment. This has sort of been shoved on the back burner.

I have to keep my neighbors, three young teenage girls, for a few days while they go out of town. Had to go lock up all my guns, and be sure all the serious meds I have had to take are locked up. Kids are curious about everything and I want to provide a safe environment for them.

Prepping things for the new vocalist, dealing with the speech therapy issues after the hospital stay, trips to the hospital today for radiology of my throat. Electronics will have to be set on hold for a while.

Billy

“Amazing! I’ll be working with Jaco Pastorius, Charlie Parker, Art Tatum, and Buddy Rich, and you’re telling me it’s not that great of a gig?
“Well…” Saint Peter, hesitated, “God’s got this girlfriend who thinks she can sing…”