On Mar 26, 2025, at 11:39?AM, Stan Dye via groups.io <standye@...> wrote:

What input supply voltage were you using when you made those measurements?

D502 should have a square pulsed signal from about 0V to almost the supply voltage, which should average to a small constant DC voltage when measured with a DMM.? C504 should have a relatively clean constant DC voltage, at about 2V.

So something is likely broken here.? Since L501 has continuity, it is likely the diode or capacitor.? Jeff would know better than I.

Stan KC7XE