I got the cheapest (or only?) 3 wire 3 digit low range meters I could find on Amazon. I was actually looking for 10V range, but these 100V meters can switch their decimal point, so they work. https://www.amazon.com/dp/B0BG31FBX5
Three wire is important, since digital meters will not usually run below about 3V, so you need a meter with a separate power connection. Good thing there were 5 pairs, since one of the green ones already self-immolated (actually, it just went dark, but it did pull its supply voltage down to 2V, and when I then misguidedly (not sure what I was thinking) removed the inline resistor I had wired in to reduce the voltage it was running at, some actual smoke came out...).
Maybe I'll add a parts list to the separate thread.
Three wire is important, since digital meters will not usually run below about 3V, so you need a meter with a separate power connection. Good thing there were 5 pairs, since one of the green ones already self-immolated (actually, it just went dark, but it did pull its supply voltage down to 2V, and when I then misguidedly (not sure what I was thinking) removed the inline resistor I had wired in to reduce the voltage it was running at, some actual smoke came out...).
Maybe I'll add a parts list to the separate thread.
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