The Amp Garage

Thanks Martin. I didn't think to look at the Express files.

Is there a layout for the top of the chassis (transformer locations) for the Liverpool? I'm using Pacific Audio transformers.
Thanks.

Don't know if I'm late to find this out, but Magnetic Components (Classic Tone transformers) is out of business. Response from Magnetics Comp to my inquiry : "We are no longer producing transformers anymore and sold out of all stock a few months ago. We are essentially out of business for good since...

I added a 1M resistor from V2A grid to ground, and the loss of output at high volume levels is gone. This fix was suggested, as the grid doesn't have a direct resistive path to ground.

Hi Mark, I followed a lot of your work on 18wattt. Attached is the Weatherford schematic, thought to be definitive, with the cascade input added. Note, I did not include the 100R output tube screen resistors. So maybe if I remove/lower the value of the cathode cap on V2a after the tone section it ma...

All around stunning build!

One issue has come up. With the volume knob around 3 o'clock, a low E or A string on the guitar will cause a momentary loss of output. Then output returns to normal right away. Thinking it might be an output stage problem, I note I did not include output tube screen resistors (100R) as they were not...

Again, with the schematic and studying photos, I came up with a chassis drawing. I had one made in cold rolled steel, thinking of chrome plating and silk-screening it. Just the cost of plating turned out to be more expensive than to have a new chassis made in stainless steel with laser etching the p...

Four years ago, after successfully building a Fender Princeton and two 18w watt amplifiers, I was looking to build something with more power. I came across the Weatherford schematic for the Supro Thunderbolt and thought that was interesting. I thought the PS multi-section can caps might be difficult...

Thanks all for the discussion and information.

The schematic has been posted by builders of the amp. You know what "assuming" it is correct can bring...

I have completed a 5E3 build and was going to follow up with a CJ11. The schematic for the CJ11shows a center tapped 5V winding for the GZ34 rectifier, with the HV coming from the center tap. On the 5E3 there is no center tap on the 5V winding, and HV is taken from Pin 8 of the 5Y3GT rectifier. Back...

jaydawg,

Did you ever get/make a drawing for the Tbolt cabinet and/or chassis? I'm getting ready to build one and have only online photos as reference.
Thanks,
JohnO

OK thanks. I'll keep you posted on the build

I'm getting ready to build a TRexS and was wondering if the channel switching is exclusive (only one at a time), or if both can be feeding the phase inverter (to what effect?)? Is there such a thing as a'blend control" to mix the two channels, each channel full on at the extremes and a mix of the tw...