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AC Mains Power Supply

Several years ago, I attempted to run a Cell directly off of 110 Volt AC. I knew I had to convert the voltage to DC first, so I rigged up a 20 amp Diode Bridge Rectifier. The rectifier provided positive pulses on one wire, and negative pulses on another wire. Since this was a test, I let the Mains 110 VAC 20 amp circuit breaker do the safety work.

The experiment was on the "Brute" Cell. There were 12 plates, each 20 inches x 3 inches. The configuration was +N- +N- +N- +N- . The cell was using well water. When I applied power, the container immediately bubbled over; with-in 3 seconds, the lights went out. What happened? Oops, the circuit breaker tripped, and the bridge rectifier burned up. I tried a 50 amp rectifier and a rheostat with one side wired through a 25 watt light bulb. It still burned up the rectifier and tripped the circuit breaker.

As it turned out, electrolyte should not be used when you start your test. Add small amounts of electrolyte, only after startup produces little to know electrolysis results.

The problem needed a means of limiting the current. So I search the www and find this:


According to the above information, the capacitor needs to be rated for a higher voltage than the power source. It also needs to be rated at 14 microfarads for each amp of current you plan to allow. In other words, if the cell is to operate at 10 amps, then a 140 microfarad capacitor would be needed. It needs to be a Motor Work or Motor Run capacitor, not a Motor Start or Electrolytic (DC capacitor). You will find both Motor Start and Motor Run capacitors. Motor Start capacitors are not meant for continuous operation. They will not work long. Make sure you get Motor Run capacitors. The video, below, explains this.

  Motor Capacitor Guide



Note: You are on your own if you build and test this. I am not responsible for your safety, or lack there of.


    Motor Run Capacitors from Temco Industrial Power

      70 and 80 Amp Bridge Rectifiers with Heat Sink, 600 - 1000 Volt

    Green Fuel H2O web site


Bridge Rectifiers convert AC voltage to DC voltage pulses. I have drawn a red circle around it, in the picture below.



110 Volt Variable AC Voltage Controller
  • 15 Amp
  • Used to control Routers, Fans, Lights
  • Use it to control your AC HHO Generator Diode Bridge Rectifier
  • jNolan75 sells this on ebay.com
  • Harbor Freight sells them




Power Transformer Variacs

Different models are available: 1KVA, 3KVA, 5KVA and 10KVA

Input: 110 VAC
Output: 0 - 250 VAC
Output Current: 28 Amps

  Available on Amazon.com and ebay.com

  10 Amp Variac Variable Transformer

In order to purchase the right variac, it is critical that you know the amp usage by your electronic device. It is always best to be conservative otherwise you risk destroying the variac; and it can be very dangerous. For example, if your device requires 5 amps Continuous, buy the variac with up to 10 amps Surge.

*  10 Amps Max Continuous use 
*  up to 20 Amps Surge

  Available on Amazon.com

Basic Diagram and Explanation


Power Max Power Supplies
  • Power Converter and Charger
  • 13.6 volts to 14.4 volts DC output
  • 105 to 130 volts AC input
  • Available in 35, 45, 55, 60, 65, 75, and 100 Amps

    Copyright 2003   All rights reserved.   Revised: 04/03/22.                                             Web Author, David Biggs
The information presented on this web site is for information purposes only. Should you decide to perform experiments or construct any device, you do so wholly on your own responsibility
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