L4B: I have the grids grounded. So the grid bias resistors (a.k.a "toaster ovens") in the PS are gone. Out! (what the heck was Drake thinking when he did that?) as well as the L/C strange network on the grids (???); added a resistor, keyed by the relay to cut off stby current. Since all that is gone (a) the amp standby current is now very very low; (b) no more heat from the PS and (c) you will need less power form the exciter to drive the amp. But the interesting point is that since that crazy circuitry is all gone, the ALC pot is now free. SO... time permitting I want to add a small negative PS inside the rf deck and use it to control the exciter power via that (now) unused pot ( DC offset fed back to the the ALC radio's jack) I drive the amp with a FT1000MP which requires 0 to -4V for power control. I am hopping to control the output of the linear via that pot. Doin it in the 1000MP was a PITA to adjust power because of the size and location of the RF out pot in the radio. Is anyone out there doing something similar?