ugly hot wire PS

[Phil]

How big is the wire, and what material? I'm surprised you need this kind of current. My cutter used to run on a small 6V battery.

Phil M1GWZ



On 24 Sep 2015, at 16:37, Alex Fraser wrote:

> I modified an old 20 amp DC power supply for my how wire foam cutter.  The old supply just couldn't provide the amps to get the wire real hot.  I use  a lamp dimmer to control
> the temperature.  At a little over half a turn the wire gets pretty hot.  It makes cutting airfoils a lot easier.  I'll work on making it pretty now that I know it works good....
> <power supply small.jpg>
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