Tube Amp Archive

Looks great! What does the pot between the IEC inlet and the fuse do? Well that was my one big deviation and I thought it might be a good idea to try. I stole the idea from a Howlin' Amps schematic I saw in my research that moved the OD trimmer to the back of the amp so that it could be manipulated...

Couple more gut shots

I started with the tweed Champs and graduated up through a series of kits, did a 64 Vibroverb and a Deluxe Reverb from my own sourcing, but I've always really wanted to source everything and build an ODS. Finding this Forum and all the incredibly useful resources and information has proven invaluabl...

Apologize for the delay. I posted this in the morning at my day job and all my docs were at home. Attached is Mercury Mag Power Trans pwr schematic and Fender schematic I used. I also incorrectly called the 360vac primary out as B+ dc out. The 1K resistor substitution worked for me. I'm a new partic...

Thank you. I'll give it a shot tonight.

The 10K-L bias pot on my Vibroverb project amp is maxed out and I am not able to increase bias any higher than about 34.5 mA (I'm targeting about 45.2mA). Tubes are new. Voltages (as follows) appear to be in the ballpark vs schematic: B+1 472v B+2 468v B+3 457v B+4 419v GZ34S b+ DC out 360v 6L6GC pl...