6.3 VAC elevated center tap

[Cartman]

For a 6.3V heater winding that also powers a dc power supply for relays, can the center tap be elevated to the power tube bias voltage (29 Vdc)? Or, will doing that be a problem for the relay power supply? The relay board is by Hoffman and rectifies 6.3 VAC to 5.0 Vdc

Apologies for the hand drawn diagram. Note: The two 0.165R resistors are there to drop the voltage to the tubes a bit(from 7.1 to 6.0 VAC).

[sluckey]

You can do that as long as no part of the Hoffman circuit is connected to chassis ground. That includes any footswitch jacks too.

[Cartman]

Thanks. The relay circuit is isolated from the chassis.