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Pulse generators keep a constant controlled production of your electrolyzer or fuel cell.  It controls amperage draw and in most cases allows for more production for energy used.  Otherwise, the electrolyzer will overheat and deteriorate prematurely.  I encourage you to look at any others available on the market and please read the fine print.  These will produce hydrogen hooked up to an electrolyzer and I have the videos to prove it.  We also have references.

Here are some we offer that work and come with a Warranty!

*  Please look below for other great deals. 
 

Pulse Generator (Basic) $109.00                                Purchase this product This will do the job.
		1 to 100Khz  Frequency Range. Adjustable frequency. 49 Amp capability (changeable by request). LED for observing frequency. For 6 to 15 volts DC.
Pulse Generator (Midrange) $119.00                            Purchase this product Great for specific projects.
		Custom Frequency Range Wide Range of Adjustment 110 Amp capability (changeable by request) LED for observing frequency (Choice of red, green, or yellow) For 6 to 15 volts DC. View Video (large 6 Meg).
Pulse Generator (Advanced) $129.00                        Purchase This Product For the person who experiments with everything.
		Custom Frequency Range (Extremely Adjustable) Wide Range of Adjustment 169 Amp capability (changeable by request) LED for observing frequency (Choice of green, red or blue) For 6 to 18 volts DC. (adjustable) Large variety of options:
		This model was tested at 14 Amps with no overheating.  Although the transistor is capable of 3 times that amount, 12 guage wiring and a cars charging system is not.   This is the inside of a dual mosfet type. Great for splitting the load on a multiple tube system.

*  A couple of important things to know is:
1.  A Mosfet with the most amperage is not always a good thing.  They have an Avalanche rating and are designed for specific uses.  They also have a continuous rating which is considerably less than its maximum rating.  Although a mosfet can be rated at 80 Amps, it can be as low as 20 Amps if you are putting too much resistance on it.  You can read this at Wikipedia or any other electronics resource that a mosfet CANNOT take a constant 6 or more amps without eventually failing or oversaturating.  In some cases you must use a relay or split the load using several mosfets. They are not designed to be shorted out and putting two electrodes in water is a short.  This is why other manufacturers do not specify a warranty.  (Yes, we warranty ours and no, I won't tell you how I do it).

2.  Transistors have limits on their switching speed. Real high frequencies will normally be a waist of money.  I will gladly explain what components work and why others will not.  The circuit to the transistor is important because it needs to completely switch on and off to last long and handle amperage.  Ammeters and excess electronics use the energy a transistor needs to switch properly.

All of the pulse generators are made from surplus boxes made of quality material from the USA.  They have rubber pads and are built rugged.  They are not an exact copy of the Meyers or Lawton design.  These are built much better and can withstand higher amperage.

Please read information on our website or email before purchasing the midrange or advanced models.   It can often change your thinking on how you want it designed.

Meyer / Lawton Generator Kit	$49.95
Includes: (6) 100 ohm resistors (1) 220 ohm resistor (2) 820 ohm resistor (2) 100 mf 16V capacitors (1) 47 mF 16V capacitor (1) 10 mF 16V capacitor (1) 1 mF 16V capacitor (1) 220 nF capacitor (1) 100 nF capacitor (3) 10 nF capacitors (4) 1N4148 diodes (1) 1N4007 diodes (2) NE555 timer ICs (1) NE556 timer IC (1) 14 Pin IC Socket	(2) 8 pin IC sockets (1) Mosfet 55V 35A or greater (BUZ350 originally used) (1) Heat sink for Mosfet (2) 250K variable resistors (2) 25K Variable resistors (1) 5K Trimmer Pot. (2) Toggle Switches (4) Potentiometer knobs (1) Red LED 3mm (1) PC Board (1) 100V 3A diode or greater (1) 6 Pole slide switch. Instructions + Alternate Options. *  Assembly required.	You will receive the items pictured + 4 knobs. (Not always identical). Add $1.50 for 4 wire connector Add $.65 for 3 wire connector        BUY this product

Simple pulse generator. (Heat sink is external on some) Good way to save money. Low Price $49.00 (Refurbished) Guaranteed to work! Note: Picture may vary.		12V DC Basic Pulse / wave    Generator Kit $19.99 With Schematics and instructions           ● If you have a pulse generator which does not work, we can probably fix it or help you fix it.
PWM DC Speed Controller Kit Comes with instructions $22.95 On Sale $17.95 (requires assembly)                   note: Speed Controller is made for smaller motors and not recommended for hydrogen.   buy now add 21.50 if you want it assembled. OEM DC Speed Controller Kit without box $14.99 Smaller heatsink and generic PC board.  Instructions included.   Do you want to see frequency and Amps?  It is cheaper to purchase a Multimeter which does all of that rather than incorporate it into a pulse generator.  $52.99                        Checks amps, volts, frequency, temperature, capacitors, transistors and ohms. Comes with batteries and temperature hook up. BUY this product If you need more than the advanced handheld, I suggest the 110V signal generator.  1 Hz to 2 Mhz.  Does sine, square, and triangle waves.  Also has digital frequency readout.  Not recommended for producing hydrogen.  It would require a relay or modification.  Only $129.99. Troubleshooting guide and Schematics.		Oxygen Sensor Simulator Kit Single Wire $14.95 Three Wire  $19.95 Professional Soldering Station Comes with heat gun and soldering wand.  This unit is ready to go and many parts and tips are available for it. Only $114.99  BUY this product                      Click to enlarge Small hydrogen generator/cell  $39.95 2 tube design. wires and small container (PVC).  Changeable tube design. Large Meyers Replica 7 tube Electrolyzer $295.00 Electrolyzer only. with pulse generator $379.00 Watch video Video with Pulse generator   Hydrogen Valve and tube setup for 4 cylinder vehicle. $249.99 If you have a quality item which works, I can list it on our website.

I want to encourage you to look at some of the videos and do research before you spend money on something which may not work for you.  Our stuff page has many tried experiments which may or may not save you time and money.  We replaced the BUZ350 with a higher amperage and avalanche Mosfet.

 Shop online for many components we have in stock.  If you like the parts but not the price, let me know.
 
These are just a few boards and pulse generators we have tested.  Please read hydrogen facts before buying these from Ebay.
(click to make the image larger)

The standard PWM DC Speed Controllers. Not very good for producing hydrogen. The Reversing DC speed controller.  I have no idea why this would be used as a hydrogen pulse generator.		Bob Boyce board layout. lots of electronics.  Still not the great results we hoped for.      Another pulse generator with not much amperage capability.
This is the new one I am building. A bit too big for today's technology.  (I am not kidding).		This one looks great and is built well but still needs to be modified to handle loads.
A few of these show up. These really need to be modified.
Heat Sink A standard heat sink for a small plate electrolyzer should be a good size to handle heat,  Not be the size of your thumb. Definition: (from dictionary.com) Electronics. a metallic heat exchanger designed to absorb and dissipate excess heat from one of the devices, as a transistor or resistor, in a circuit.