Fender "Princeton" 6G2 clone in a combo cabinet

My first push-pull is built following "Princeton" 6G2 schematic with some adjustments. Two 6V6 got replaced by a couple of 6K6, generating a bit less power. P-T291 from Amplified Parts used as a very unexpensive output transformer. Finally old Yamaha combo bought on the market for $20 donated it's cabinet and 12" speaker. I had to construct a rack to slide the amp's guts into the cabinet and save the original amp for the possible future use. 

The amp turns to be loud enough, but 2-band tone control eats a lot of gain, so it's hard to brake it up. Next time I'd use a long tail phase inverter to get more gain. Comparing to original circuit, this build has an extra "Master Volume" pot and a switch on the back to turn Negative Feedback off. Chassis layout ended up a bit messy, so next time I'll have to plan better layout before start a build.

Not going to sell this one yet and planning to use it as a demo unit.

This is my first time switched from a 3Pins IEC C6 power socket to a standard computer C14 socket with built in 20mm fuse. Had to cut a square hole with a Jig saw.

UPD from January 2026. To return a gain back I drilled an extra hole on the front panel and put a "raw" switch there. This switch elevates a tone control ground point and gives about 3dB boost in gain. The trade off is that you can barely control the tone. Still good to have options.