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4hv.org :: Forums :: General Science and Electronics

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Possible ground loop problem?

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LAN_403

nrhoades

Fri Aug 24 2007, 09:27PM

Registered Member #610 Joined: Wed Mar 28 2007, 09:44PM
Location: Middletown, RI
Posts: 110

Steve Connor says:

If the fuse is in the input side, you should add another 20A fuse or circuit breaker on the output side for peace of mind.

I just checked it and discovered that the fuse IS on the input side. Sneaky. I will keep this in mind.

My scoope is capable of INVERT+ADD and I will probably try that next in order to save money.

Some of those Chinese variacs come with really shady construction!

I hear GE makes benchmark variacs... what are your experiences with these compared to others?

Hazmatt_(The Underdog)

Fri Aug 24 2007, 10:54PM

Registered Member #135 Joined: Sat Feb 11 2006, 12:06AM
Location: Anywhere is fine
Posts: 1735

I wouldn't really bother with GE Powerstat Staco or General Radio Variacs, unless you can find one at a swapmeet, they're just too expensive compared to the Chinese ones. What I'm saying is just fix the wiring so its safe and you'll be fine. e.g. make sure the hot is fused, make sure the switch disconnects the hot insted of the neutral, those kinds of things.

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