6j6 LTP experiment

[BrainDeadAmps]

Hey guys,

I rebuilt an old projector amp and lifted the phase inverter circuit from "the howler monkey" designed by F. Cook.

It works but seeing that my amp has a higher Ht voltage I'd like to bump up the ht supply from 225 to 250 in order to raise the voltage of the preamp.

I get lost trying to come up with the modifications needed mathmatically.

[sluckey]

What are the voltage values at each filter cap now?

[BrainDeadAmps]

What are the voltage values at each filter cap now?

This is the circuit in it's current state.

[sluckey]

Experiment with the last two dropping resistors until you have what you want.

[BrainDeadAmps]

Bumped it up to 250 and sounds great, thanks Sluckey.