Informartion on the Deluxe Big Muff Pi model C

[ElectricDruid]

That schematic shows +15V DC for the power. What you describe sounds like a simple transformer plus a couple of diodes for a half-wave rectifier. That would make the diodes being zeners highly unlikely, and we'd want to see some big smoothing cap(s) too.

But I'm guessing because there's nothing on that schematic about the power section at all. It's just assumed.

In practice, any small transformer with mains input and 15VAC output should get you close enough. It's not like the circuit is going to draw tons of current, so 100mA is ample, and even 50mA would probably be fine, but I don't know if I've ever seen a power transformer that small.

Can we see some photos of the insides of your pedal, please? All this speculation I'm doing is dangerous, frankly.