<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>You can buy a 24 volt DC MIG welder from ReadyWelder.</div><div>David Katz<br><br>Sent from my iPhone</div><div><br>On Nov 23, 2013, at 10:37 AM, "Allan Sindelar" <<a href="mailto:allan@positiveenergysolar.com">allan@positiveenergysolar.com</a>> wrote:<br><br></div><blockquote type="cite"><div>
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Forwarding from Windy.<br>
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Sure you can solar weld! Afterall, some of us have welded from
battery power when we preferred NOT to.
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<div> :0) << that's the HONK of a Solar Bozo
(Emeritus)</div>
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<div>But seriously, Back in the 1930's to 50's when thousands of
farms and ranches had wind power, 32V was the standard voltage
for the 2-3kW systems. Among the many tools and appliances
available, it was common to have a 32V welder. I used one of
them back in the 70's. I was nothing but a box with a coil in
it. The coil wasn't for inductance, just for resistance. It was
steel wire maybe 1/8" thick with taps to give a choice of
current. For max. current, the coil would be completely out of
circuit.</div>
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<div>The guys I shared the shop with abandoned their buzz box 'cuz
the DC was so smooth.</div>
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<div>Towers are still standing on welds I did in the late 70's
using 6011 and 7013 rod (if I remember right).</div>
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<div>I had a cell failure early on, and my system was 30, not 32V.
Worked fine for years. </div>
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<div>I'm quite sure 24V would work, at least for smallest rods. It
certainly works for MIG welding. Century made a 24V "Portable
MIG" to use on 24V diesel vehicles and farm machines for field
repairs. They were made in 70's and 80's. Nice, 'cuz they are
light-weight / no transformer. I used one on my PV system until
I moved recently. I had 3-4V of line loss and it still worked
fine with .030 wire. Again, it has steel coils with taps for
control.</div>
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<div>If you want MIG, search for a Century Portable MIG.
Otherwise, get the smallest sticks and try 24V. I think I tried
it, or heard that it's not quite enough V. 36V is MORE than you
need. If you do 36, use undersized cable because you'll need
resistance anyway!</div>
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<div>Searching \u2026 24V MIG is in remote storage with hen's teeth and
unobtainium. </div>
<div>but discussion at</div>
<div><a moz-do-not-send="true" href="http://forum.ih8mud.com/tools-fabrication/416445-snap-24v-portable-mig.html">http://forum.ih8mud.com/tools-fabrication/416445-snap-24v-portable-mig.html</a></div>
<div>confirmed that you can do stick with 24V.</div>
<div>AND somebody suggested this:</div>
<div><a moz-do-not-send="true" href="http://store.cyberweld.com/twsgspgun10.html">http://store.cyberweld.com/twsgspgun10.html</a></div>
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<div>The spool gun looks like the modern way to solve the problem
for professional use. Reviews there say it doesn't have speed
control on the gun. So you need a resistance coil with taps, and
you need a speed control.</div>
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<div>I hope this helps!</div>
<div>Windy</div>
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font-family: Helvetica; " size="4" face="Helvetica"><font class="Apple-style-span" size="5" face="'Marker Felt'"><span class="Apple-style-span" style="font-size: 18px; ">Windy Dankoff</span></font></font><span style="font-family: 'Marker Felt';
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solar-electric applications & solar
water pumping</font></div>
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<> Since 1975</font></div>
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Co-author, work in progress:</span> <u style="font-size: 12px; ">The Handbook of
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