Speaker help for a newbie.

[old_coot88]

If current to the output xfmr were not going thru the choke (field coil), the field would be very weak. That's cuz the output draws more B+ current than (probably) all the other stages combined.. thus maximally energizing the speaker field. Tryin' to sound all fancy-shmancy.

[Phil]

Originally Posted by old_coot88

If current to the output xfmr were not going thru the choke (field coil), the field would be very weak. That's cuz the output draws more B+ current than (probably) all the other stages combined.. thus maximally energizing the speaker field. Tryin' to sound all fancy-shmancy.

Quite true! Obviously, I'm not reading the schematic correctly on my phone.

A choke of that current is going to be expensive so he might want to replace it with a resistor and put a larger cap after the resistor. I wouldn't increase the 40 mfd cap as it is much to large for the rectifier anyway (based on tube data sheets) and filtering will be better with the RC circuit.