Re: Merc-o-Tronic 172 Peak Kilovolt meter – History?

[legendre]

So is there a consensus that the KV input used a high-voltage probe that’s no longer present?

Fair enough, as nothing else makes sense.. the connectors & circuitry are not suitable for anything north of 600V in my view. But I still can’t understand the cross-wired input terminals – what’s the point of that arrangement? If they want the HV probe to be plugged in "backwards" they could have marked or color-coded the banana pins on the probe connector to match whatever polarity they desired. Why have a second set of cross-wired jacks for this?

Next thing, need to find out what the divider ratio is for the 60KV scale, so the probe ratio can be determined and duplicated. There’s an old EICO HV probe body around here somewhere, missing the internal resistance. Maybe it can be adapted to work with this meter?

Gotta do something with it, lol.

@BillW

Did you find anything?