12-25-2016, 04:07 PM
There are lots of web-articles describing DYI probes with the 1 MegOhm resistor in the tip for the DC probe. I found a nice kit with good parts all ready-to-go in the Deluxe Heathkit VTVM Probe Kit – Complete kit for 3 Wire Meters V-4/5/6/7A from KK4HXJ through the e-Bay. The seller is also friendly with advice. Very nice to get my dad's old IM-10 back on the road.