Fender Champ Diode Power Supply

[tyru007]

Any issues with this as a power supply for a fender champ? Would I be better moving up to a 300-0-300 supply for a higher plate voltage?




> Hammond 270DX (275-0-275 at 90 mA) followed by
> solid state FW rectifier consisting of two UF4007
> 40uf Cap with 220K drain resistor (1.6mA current) to ground
> 4H, 90mA (110 ohm) choke
> 20uf filter cap with current tap to OT/Power tube plate
> 1.5K resistor
> 20uf filter cap with current tap for power tube screen
> 22K resistor
> current tap for preamp tubes

I may operate two 6v6 in parallel or a single 6L6 in the future
OT is a Hammond 125ESE 15W

[loudthud]

Did you go through the procedure to get the correct transformer impedance? As I remember you click on the transformer, input the line voltage, the open circuit secondary voltage and the primary and secondary resistances. Hammond doesn't publish these numbers, you have to get the part and measure it. They might tell you over the phone, I never tried that.