"Dirty Shirley" mini schematic

[jimibiscuits]

I found this schematic on Amp Garage--it looks like a JCM800 preamp with a cathode biased EL84 power section.

Would love to get members' thoughts on this design and to understand any possible issues.

I've got an 18 watt TMB that I am considering modding.

Thanks in advance for your sharing your ideas.

[Bieworm]

Looks ok.. but I question the grid stopper value on the EL84s. I would add the proven 8k2 resistors.. and keep that paul ruby mod ready. When you push that power amp with a plexi preamp, there will be a heck of a lot of overdrive coming at ya!