Fred,
700 series II fully comp amp PL-36 pc boards. This involves removing the 120pF cap (C106/C206) that is in series with the 12K ohm resistor (R128/R129) next to Q106/Q206 and installing a 56pF cap in parallel with the 12K ohm resistor. This will greatly reduce the classic crossover notch and THD levels (particularly at lower volume levels) that you see with many Phase Linear amps (at 1kHz, 1 watt, 8 ohms). In which case the bias should be adjusted to approximately 385mV (which also works better when the 10 ohm resistors are nearer the nominal value of 10 ohms).
Ed
Ed Is this correct I'm little confused.
Converted the text to this as I read it, w ***
700 series II fully comp amp PL-36 pc boards.
1. This involves removing the 120pF cap (C106/C206) that is in series with the 12K ohm resistor (R128/R129) next to Q106/Q206 ******** R119/R219************************
2. and installing a 56pF cap in parallel with the 12K ohm resistor. This will greatly reduce the classic crossover notch and THD levels (particularly at lower volume levels) that you see with many Phase Linear amps (at 1kHz, 1 watt, 8 ohms). In which case the bias should be adjusted to approximately ********************Add Jumper?*************
3. 385mV (which also works better when the 10 ohm resistors are nearer the nominal value of 10 ohms).
I have made 2-drawing and this is the second one which I think is correct? (I love Drawing not Text)
Thanks anybody who has done this?