On May 17, 2022, at 8:42 PM, gregebert <greg...@hotmail.com> wrote:The meters in this power supply were purchased on Ebay for a few dollars each.Voltmeter (lower) is 0-500VDC . Ammeter is actually a 0-20VDC meter that measures the voltage-drop across a precision 1K resistor, to read 0-20mA.