10-27-2013, 08:33 PM
All of those control voltages seem wonky to me. The localizer control changes the cathode voltage on the AVC tube, but very little, perhaps 2-3 volts. The control itself has a voltage swing from around -6 to 50 volts or so on the wiper. The best I've ever had for difference is changing the speed of the warble between a trill and a chirp.