Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: dsones on September 27, 2024, 08:02:33 pm
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I'm working on modifying a fender princeton reverb amp to use Rob Robinette's princeton micro power circuit. The goal is to have the reverb with the 1 watt power output. I can't find a classictone 40-18027 power transformer so I will use a hammond 270CAX 500v CT 81ma 6.3V@2.5A HV center tap 5V@2A. This is the closet power transformer to the classictone I could find. Not sure what output transfomer to use. The output transformer in the princeton reverb is 15w 8.5k. The micro amp uses a 22.5k 8ohm output transformer. I think I can use the reverb transformer that is in the princeton reverb. I added presence mod and mid/raw mod. I removed the tremelo circuit. Used the princeton reverb wiring for most of the circuit and the princeton micro power circuit. I'm a little fuzzy on where to connect the reverb transformer red wire in the micro circuit. I've attached a pdf and png of my wiring diagram. The diagram is close as I could get with the software I used. If you zoom in you can see the details. Any suggestions or corrections would be greatly appreciated.
Thanks
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Cool idea! Post a schematic for best results. :icon_biggrin:
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Cool idea! Post a schematic for best results. :icon_biggrin:
Right ; Schematic will help more.