Variac was a trademark of the General Radio Company. There are also Powerstats out
there.
There are several over on the "evil empire", just search on "Variac". Don't gamble your
priceless antique on something of questionable pedigree.
73, Dick, W1KSZ
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On Tue, Jan 22, 2013 at 2:04 PM, Steve Purcell
<steve.purcell.k@...> wrote:
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Hi All,
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I'm getting set up to work on tube equipment and I'm under the impression that with old and unknown tube instruments it's best to bring up the voltage slowly using a variac while monitoring the current for anything unexpected.
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Does that sound reasonable? As an integrated circuit guy I wouldn't have thought that very useful but perhaps it is for tube circuits.
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Another question I have is about what variac to purchase. There are some cheap Chinese ones on e-bay but the real thing appears to be 10 times the price. Since I'm just a hobbyist would the cheap Chinese one work well enough or should I?search for a used one of higher quality since I can't afford a $900 Variac.
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Thanks in advance
Steve
