06-06-2024, 03:55 PM
A detailed picture (or two showing both states of polarity) of the auxiliary meter would interest me.
My dead cheap Malpin analogue meter has +/- 5 and 25V ranges, very useful. Done by injecting a weeny current into the meter movement, zero adjusted by the ohms set pot. One of these https://www.ebay.co.uk/itm/186417109229?_ul=GB Maplin were selling them for £9.95 at the end, I bought three.
My dead cheap Malpin analogue meter has +/- 5 and 25V ranges, very useful. Done by injecting a weeny current into the meter movement, zero adjusted by the ohms set pot. One of these https://www.ebay.co.uk/itm/186417109229?_ul=GB Maplin were selling them for £9.95 at the end, I bought three.
I want a PNP valve!
