I was discussing this with my lead tech (super genius).

We can make this happen, BUT:
I need a TOD computer. They pop up on eBay all the time, except for today. I will pay up to $100 for one, I cannot use of of mine right now (too much ice on the road still).

We were thinking about catching the signal INSIDE of the TOD computer, before it hits the amplifier section. This should eliminate the need for a dummy load. We can make a PWM generator with a timer (555?). By altering the control voltage into the timer, we should be able to modify the square wave output. This means a KNOB, with infinite variability or presets (whichever you want).

HELP ME FIND A COMPUTER!!!