Using Osciloscope on Hot Chassis

[Electronic M]

Just don't connect both the test equipment and the radio to the isolation transformer at the same time....It is just as bad (for the electronics) that way as no transformer at all.

I just have separate a variac and isolation transformer and daisy chain them when I need both functions....I've considered building them into a common box, but decided I need isolation rarely enough to not want to always lug both around.

[old_coot88]

If you get an isolation xfmr, be sure its current rating is high enough to handle whatever you may be testing in the future.

[dieseljeep]

I never ground my scope or my VA62. I keep those grounding adaptors handy.
Even though, I have isolation transformers, I still do it that way.
I'm not worried about getting a shock from my equipment, plus all my circuits have GFI protection.

[Findm-Keepm]

Originally Posted by dieseljeep

I never ground my scope or my VA62. I keep those grounding adaptors handy.
Even though, I have isolation transformers, I still do it that way.
I'm not worried about getting a shock from my equipment, plus all my circuits have GFI protection.

Everyone of my late father's oscopes and meters had the ground pin cut off.

I've got probably 3 or 4 commercial isolation transformers and a Sola power conditioner/stabilizer, but rarely use an isolation transformer. One GFCI, an Arc-fault breaker, and the rarity of hot-chassis stuff on my bench is the real reason.

Dad had one of those metal-raceway power strips across the front of the bench - I got shocked once when my knee made contact with the grounded power strip and my hand was steadying a little 13" hot chassis portable. Note to self - wearing shorts is a no-no around Dad's bench...