It does sound okay through the headphones, my guess is that it is somehow related that the headphones impedance is much higher. I didn't endanger myself, I was under the supervision of a certified electrician who is not so knowledgeable about guitar amps, but it was sorta safe, lol.
I left the AC disconnected, and connected a lower voltage dc transformer directly to the circuit (that's what the built in transformer is supposed to do isn't it?).
I couldn't find any schematics. But I did find a striking similarity to a different amp, it's name is even on the circuit board, AXL-15 (AXL AA-G15). But I haven't found any schematics for that amp either.
Thank you both for your response!
I left the AC disconnected, and connected a lower voltage dc transformer directly to the circuit (that's what the built in transformer is supposed to do isn't it?).
I couldn't find any schematics. But I did find a striking similarity to a different amp, it's name is even on the circuit board, AXL-15 (AXL AA-G15). But I haven't found any schematics for that amp either.
Thank you both for your response!