I built this amp because my son Steve who is the head engineer at Nightbird Recording Studios in LA recently did a session with Joe Perry the guitar player with Aerosmith. Perry brought several amps to the session but ended up using his Tweed Bandmaster. His guitar tech wonders why he brings many of his amps to the sessions because he always winds up using the Tweed Bandmaster. Hey this must mean something so a week later I have one. The speakers are Weber are 10A125. I ordered them 12 ohms which gives me a system impedance of 4 ohms. I've always felt speakers sound better when wired in parallel. The amp will improve as the speakers break in. The output transformer is paper interleaved and is wound on a paper bobbin. The amp produces about 34 watts just before clipping.
...