01-31-2022, 05:37 PM
I'm not sure what the aligning adapter is but I can guess. I would say it gives you the capability to use a test meter of lower ohms-per-volt to measure the AVC voltage. Meters of the day would "load" a circuit and indicate a false reading. Using a high impedance DMM or VTVM will have very little impact on the AVC voltage providing it is connected to the high side of the volume control.