Re: 400 Hz HURTS
Subject: Re: 400 Hz HURTS
From: "SROYS" <SROYS-at-radiology.ab.umd.edu>
Date: Fri, 19 Jan 1996 15:15:57 EDT
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> I saw a gang of 3 phase variacs for a reasonable price ($15) at the
> local electronics surplus/supply place. However, the variacs are
> 400Hz instead of 60Hz.
> Does anyone know if they will work ok for 60Hz?
Once, I bought a small variac at a hamfest for a dollar or two without
really reading the specs. I took it home, plugged it in to test it, and
promptly let all the smoke out. The post-mortem examination showed
that it was a 400 Hz unit. It looked like new when I bought it, so I just
assumed it was the 60 Hz that did it in and have read labels more
carefully ever since.
Granted, since I had not really checked it over thoroughly when I got it,
the fact that it toasted doesn't really implicate the 60 Hz I was feeding
it, but still.... If you have the money to spare or can bargain the guy
down to the point where you won't be upset if you end up with an
inductive heater, go for it! Either that or just buy the thing and keep
your eyes open for a spare military 400 Hz generator (if you find one,
let me know and I'll give you some 400 Hz elapsed time indicators that
Steven Roys (sroys-at-radiology.ab.umd.edu)