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Old 03-21-2022, 12:39 PM
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Note that it is not a full range 0-120VAC variac such as might be used for reforming electrolytics, but is intended for adjusting the line voltage to match the requirement of equipment being tested/aligned as per the equipment manual specification for such activity.

The Heathkit IT-1 has an output range of 90-130V.

It will be fine for operating 115 or 117V equipment from a more modern AC line voltage of 120-125V.
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