[Boatanchors] OK Smart People: Capacitive Voltage Divider?

[J. Forster]

Another source of a suitable transformer is a junk Variac or Powerstat.

Strip off all the mechanical bits, including the wiper and related stuff
Insulate the track with tape or varnish (glyptal)
Wind a few turns of #12 or #10 THHN house wire.
Then hook it up as I diagrammed before.

The size is easy to calculate.

Load Amps Drawn x Voltage Drop = Watts required

Pick a Variac a bit bigger. (you can even use a near useless 240 V Variac
if you have one around.

The new winding needs to be big enough for t6he4 full load current. Adjust
number of turns to taste.

Best,

-Jofn
===============



> Rob the transformer is open frame. Acquired at Dayton several years ago.
> It
> is fairly loose fit in 12" nema box. Left enough space for wires and bolts
> for a shelf bracket. As for the weight it seemed light for the first few
> spaces but after taking several breaks I was ready to just set it on an
> empty space. The cost was good, 5 bucks. The person selling it kept
> telling
> everyone who stopped by that it was no good for a power supply.
> So I was forced to remove it to my place.
> Jim
> KF9XK
>
>
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