I changed the resistor on the bias bridge rectifier-to-ground from 15 ohms to 2 ohms and got the voltage to -24 VDC. This also, unfortunately, raised the fillament voltage on four 12AX7's higher than what is good for them, so I added a 16 ohm resistor in series whith them and have them right where they should be.

I'm a bit worried about reducing the bias resistor anymore. Not sure if the transformer tap and rectifiers are up to a lower resistance than this or not (not sure if it's up to the valule I have on it now.) Is -24 V close enough, or should I try an even lower resistor?

Dave