How do you make a vertical weld with an
AC welding machine?
A weld that is strong and looks good?

Cheat!

Add a Full Wave DC Cheater^TM to your AC welding machine.

Why weld with DC?

Better penetration.
Better for hard-surface cladding.
"Out-of-position" welding (vertical and overhead welds) become much easier than with AC.
More stable arc. Once established, the arc won't extinguish as easily as an AC arc.
Easier to make good looking and consistent weld beads. If the bead looks right you have more confidence in the strength of the weld.
Weld thinner metals. Stick weld automotive sheetmetal with a little practice.
Weld stainless steel.

If you’ve used a DC welding machine before, you know it’s advantages over AC welding, for certain jobs.
Some welds require AC. But once you use the DC Cheater, you’ll be reluctant to disconnect it!

The DC Cheater was designed for the small shop, or hobbyist that already has an AC welding machine.
It’s an economical way to add DC capability to your shop. You already have the expensive part - the welding machine.
The DC Cheater is rugged, and simple. It rectifies the output of your AC welding machine to provide FULL WAVE DC output at up to 195 amps.
Use at up to 80% duty cycle, or the duty cycle rating of your welder, if lower.
Easily connected and disconnected using your welding cables. Just cut the cables and add cable lugs.
Can be used to stick weld or build your own "scratch-start" TIG welder.
Quickly change from DCEN to DCEP and back to AC.
Approximate dimensions of housing: 8"x6"x6" (20cm x 15cm x 15cm).
Cooling fan requires 120VAC. (Other voltages and cordsets available.)
Input and Output Studs: Brass 1/2-13 UNC (12.7mm) x 3/4" (19mm) long, with brass wingnuts.

The Full Wave DC Cheater
-click image to enlarge-


Completed Kit	Kit Components	Hookups	Waveform & Schematic

DCC-FW-195 Kit
195 amp. Full Wave DC Cheater Kit
PRESENTLY NOT AVAILABLE

View Owners Manual
(PDF format)
90 kb

View Assembly Instructions
(Revised 10/08)
(PDF format)
900 kb

View Testimonials
(Revised 4/10)
(PDF format)
20 kb

Call (603) 986-2862 or email info@proto-power.com

This is the type of cable lug required. Either crimp-on and/or solder; or the easier clamp-on style. These can be found at a welding supply or an electrical supply house. Match the lug to your cable size. The hole in the lug must fit the 1/2" (12.7mm) studs on the DC Cheater. Four lugs are required.

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