Dim Bulb test.
You might not see the 100 watt lamp just to the right of the plug on the
offending cord. It is a bit over exposed. The little on on the isolation
transformer is to remind me when the output is hot.
I use old style 7 watt lamps as power indicators. If any are on when I turn
off the shop lamps, I have left some power strip on.
PP
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