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From: "Spehro Pefhany"
Subject: Re: Heating element power supply..
User-Agent: tin/pre-1.4-19990216 ("Styrofoam") (UNIX) (Linux/2.2.14 (i586))
Date: Thu, 12 Sep 2002 12:14:04 GMT
NNTP-Posting-Date: Thu, 12 Sep 2002 08:14:04 EDT
The renowned N. Thornton wrote:
> I wouldnt advise the variac method: variacs are normally connected
> direct to the mains, and full V can occur on (real) neutral wires and
> supposed neutral wires. I.e. dont kid yourself its safe. There are
> good reasons we have an earth wire as well as the neutral.
A variac plus an isolation/stepdown transformer will give you the best of
both worlds, and will last forever if not abused. An inexpensive fan
control "dimmer" should work instead of the variac though.
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