By following these rather large prerequisites, we could make a rudimentary zapper (Dr. Clark called a "Pulser") as follows:
Take a regular 9V battery in your left hand and press a finger of that hand on the negative pole, strong enough to make a good contact.
With your right hand, tap quickly with each finger on the other pole (positive), without stopping : Prrrt, Prrrt, Prrrt,…
Do this for several minutes, and you will have accomplished a zapping session with the simplest zapper you could imagine ..
Prrrt, Prrrt, Prrrt,… According to the "rules" in use at the American FDA (Food & Drugs Association) you are using a level III medical device (the same level as a peacemaker), not approved by the FDA, that even licensed doctors does not have the right to use.
Prrrt, Prrrt, Prrrt,… That’s life!.
This device is not very efficient because the fingers are acting too slowly. If you found the previous test tiring and hard on the fingers, just imagine what we need :
A hand capable of finger's tapping 30 000 times per second.
That is why we use electronic circuits!
Dr Hulda Clark's Zapper (1)
Here is the electronic part of a typical zapper, as per Dr, Clark rules.
Here is what it takes to comply with Dr. Clark’s writing :
(From “the cure for all Diseases”, pp 15, 16)
= “Any positively offset frequency kills all bacteria, viruses and parasites simultaneously, given :
= sufficient voltage (5 to 10 volts),
= duration (seven minutes),
= and frequency (anything from 10Hz to 500kHz.”)
= Generating positive offset frequencies is the best way to kill all pathogens quickly. But it takes more than one treatment”
= Zapping does not kill shielded organisms, such as those that may be in the middle of your stomach or intestines. The electricity travels along the stomach or intestines wall, not through their contents”
To be sure that the offset is always positive, Dr. Clark recommends that voltage never goes below +0.25V.
Devices of Rife’s kind work mainly with very precise frequencies called MOR (Mortal Oscillatory Rate), and intended for only a kind of parasite. Those frequencies are made of alternative current. These devices are not "H. Clark’s zappers"
The blood electrifier of Mr B. Beck sends an alternating voltage of approximately 50Vcac, at a frequency of 4Hz. This is not a "H. Clark’s zapper," even if the effects in the blood are similar.





P.r.r.r.t, P.r.r.r.t,
P.r.r.r.t, …
P.R....
...R.R....
...R.T.
The original Zapper as described in Dr. Clark’s books uses an electronic oscillator known as a 555, is powered by a 9V battery, has an internal output resistance of 1 kohm and a square wave frequency of about 30kHz, with a duty cycle of about 50_On/50_Off.
By a safety and technical point of view, its simplicity is hard to beat.
By law, we cannot talk about its effectiveness.
Lets simply say that most zapper users are happy with their devices, and their number increases every week.
Dr. Clark’s books had been translated in German, Italian, Japanese, Russian , Polish, Spanish, Serbian, and French. Translation in other languages is in the way
Much confusion exists around the zapper's name.
This confusion is often sustained by people who act themselves as "Gurus" of the question, or copy other "gurus" without any verification, or by distributors abusing the credulity of those who suffer and have been put aside by the current Health Care System.
A zapper to its simplest expression
Zapper’s use covers now General Zapping, continuous zapping, Plate Zapping, Food Zappicator, Teeth Zappicator and Homeography.
From the initial 30kHz, you can now find zappers with almost any frequency : 30kHz, 2.5kHz, 2.0kHz, 1.0kHz, 728Hz, 15Hz, and many, many other.
Lower frequencies, as 2.5 and 2.0kHz, are “IN” and 15Hz is used by a popular zappers.
See Frequency Page for a discussion about frequencies.
Use of the zapper started with a 3x(7mn_On, 20mn_Off) session. Now we use too 20mn non-stop (Plate Zapping) and 1h or more continuous zapping
Most zappers are built in hand-held versions, around the popular (and anemic) 9V battery.
Battery’s manufacturers consider their 9V batteries as “good” from their initial voltage of 9.5 volts,
to their “end-of-life” at 4.8V.
The (technical) effectiveness of the output decreases as the battery voltage drops.
In the use of Plate-Zapping, where the voltage needs to be at least 8.9V, fresh batteries are quickly discarded.
A few Zappers in the market use an electronic circuit to boost and regulate the battery voltage to a steady level, throughout the official life of the battery.
More complex, more expensive but this ensures a steady, reliable, powerful and secure operation..
Most (95%) Zappers use the excellent frequency generator 555 (or CMOS 7555, low power consumption) to build robust and reliable Zappers.
The use of a micro-controller is still rare, but should become more widespread, with competition’s help.
There are many advantages using a micro-controller, as monitoring voltage input (Battery) and voltage/current output, use of different frequencies in the same session,, complex sequences, and, why not, display of 1 or 2 lines of text.
The power is there. The extra cost of all these goodies too.
Very good for the future of zappers.
Technically speaking, a Zapper is essentially a frequency generator powered by a low voltage battery, with a special vocation.
Want to know more, to go in deeper detail of Rife, Beck, Clark work?
Want to know what is the relation between a zapper and a frequency generator?
Go to see next Zapper's page
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Legal disclaimer :
We do not prescribe, diagnose, or make any medical claim or advices.
The principles, assumptions or theories exposed here have no medical or scientific value officially recognized.
Please note that Dr Clark’s books or devices have not been evaluated by Health Canada (Canada) or Food and Drugs Administration (USA), and then, have not received any guarantee on their effectiveness or their safety.
Zappers can only be sold or used as experimental devices for educational research. They are not intended for use in the cure, treatment, prevention, diagnostic of any disease.
If illness is an issue, please consult a licensed health professional before attempting any self health program.
By using this information without the approval of a licensed health professional, you are prescribing for yourself, as permitted by law, and you take full responsibility for the results.
These results may vary depending on individuals
Certain Internet sites associate zapper and serious illness.
It is not our role to make such assertions.
Illness does not interest us.
We leave it to the experts of the unhealthy states.
We are only interested to feel better, which is highly subjective, and to get rid of as much “invaders” who drain our resources, as possible.
These invaders, who live at our expense, we name them under the generic name of “parasites”.
We experience the influence of the zapper effect
on these parasites, on a hypothetical and empirical basis, which have nothing to do with medical or scientific rules.