Quote:
Originally Posted by Penthode
If there is no ground pin it is safe to use. However you must keep safe. The VTVM case must be isolated from chassis ground as it will be at -120vdc. I keep mine away from the chassis. And do not touch the VTVM when the power is on.
You will get a very bad jolt of you are touching the chassis with one hand and the VTVM with the other. When I was young long ago, I was taught the one hand rule: place one hand in the pocket and only use the other hand to probe and test. I cannot emphasize the danger if you do not take care.
Just be methodical and understand what you are doing. You should have no problem if you just setup the VTVM, isolate the case and just observe it as you make the adjustments. Just refrain from touching it.
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Thanks again! I have a very healthy, I think, respect for electricity. I do not like shocks. Doesn't matter if it's a tingle from an insufficiently discharged capacitor or a 350V DC B+ shock...I don't like them. I am especially cautious inside tube equipment. I have a 16" RCA with a metal cone CRT carrying 15kV that I'm terrified to work on. It's a shame because the cabinet for this TV is perfect. Literally owned by a little old lady who only drove it to church on Sunday's.