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Isolation transformer - high secondary voltage

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07-28-2020, 03:23 PM

grossbard

VideoKarma Member

Join Date: Sep 2017

Location: Oklahoma City, OK

Posts: 35

Isolation transformer - high secondary voltage

I recently bought a Triad 250VA iso transformer. Both my Kill-A-Watt and Fluke meter showed around 133v on the secondary with no load. As I understand, this is normal with no load. However, even with a 32" CRT connected it was reading around 128-129v. Is this too high to safely operate CRT TVs or are they pretty tolerant of this voltage?

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