Tube Amp Archive

Hi jjman. I tried reverseing the OT primary wires. It made it worse. I moved some of the wiring around in the hope its a layout problem. Just have not had the time to try the amp out yet. Thank you for your idea.

Here is a shot of the amp. I must say that rebuilding an amp into another type is not the way to go. A clean build is quicker. I had the parasites real bad. But it is a cheap way of doing it.

I thinking of getting an OT with the right impedance. Having gone this far might as well go all the way.

I just finished rebuilding a Traynor YGA-1 amp into an express. Using this chassis caused some problems that I had to make adjustments for. Tranny and tube locations, PS caps and pot locations are different than the express layouts show. One problem was major parasitic oscellations. So I made the fo...

This is a follow up to my earlier post. I removed the choke which helped alot. However I still have a noise problem. The noise is like a fuzz sound along with the regular note. Sort of a ringing. As the note decays, the fuzz note dies quicker, chopped like a noise gate switching off. This noise is m...

Thanks for the reply. On Monday I will remove the choke and see how it sounds. This is some amp, even with the noise it rocks.

HI guys. I just finished my wreck. I used a old Traynor YGA-1 amp for chassis, transformers etc. I rebuilt this amp before and had no problems with noise. I left the choke in the power supply to reduce the voltage a bit. It is between the standby switch and the 1K resistor. This point is my B1 feed ...