voltage regulator: calibrate voltmeter

[heaventwig]

current functionality

Voltage output shown on multimeter is 219.5V.
Voltage output shown on voltage regulator is ~150V.

desired functionality

Voltage output shown on voltage regulator display matches voltage measured by multimeter.

[DaBlender]

Hopefully just the meter. Either through maker or taking it apart to get we can test right before it to isolate. Estimated under$20 part.

[heaventwig]

Yeah, with the output being so consistently 219.5V, I suspect this is a meter problem not a thing with the rest of the voltage regulator device.