Larry,
My suggestion is to save that Variac for better uses, and reduce your high
voltage by removing a suitable number of turns from the HV transformer's
secondary! Depending on the transformer's construction, that might be very easy
to do. Or you might be unlucky, and find the secondary is wound under the
primary. In that case it would be necessary to first unwind the primary, then
remove turns from teh secondary, then wind a new primary (with new wire!). That
would probably be too much effort to be worthwhile. But if the secondary is
accessible, you may be able to remove turns without even disassembling the core.
Another option is to trade that transformer for another of the proper ratings,
if you manage to find any way to d such a trade.
Manfred
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