MZ4_TN1 : A commercial zapper

Function of each element :

=   7555 : CMOS Integrated Circuit version of the
famous 555.  Uses very little current for its own needs. 

=   C1 : Makes input more stable and noise free.  Any
value from 1uF to 100uF, 25V_WV or more.  Not

=   C2 : Charge and discharge of this capacitor "makes"
the timing of frequency.
      Around 100pF for 30-32kHz;
      Around 470pF for 5kHz
      Around 1000pF for 1.0/2.0/2.5kHz
      Around 0.1uF for 8 à 20Hz,
      16V or more.

=   If frequency stability is a most for you, use 0.01 to
0.1uF for C3.  In zapping mode, this capacitor is not
essential.  Frequency variations can make more "hits"
on specific parasites.

=   D1 : Protects circuit against battery inversions, but
subtract 0.7V on the output voltage.  1N4148 or 1N4001
to 1N4004 are good choices. 

=   LED1 : Use a super bright Led for a minimum
consumption.  Around 700mcd @ 20mA is a good choice.

=   P1 : Trimpot. Trims output frequency.  Multi-turn
permits good stability and precision.

=   R1 : This resistor is in the path only on the capacitor
charge.  Any value between 47 and 150k.

=   R2 : When the trimPot is at its minimal value, this
resistor sets the upper frequency limit. Any value
between 47 and 150k.

=   R3 : Limits LED supply current.  This LED current is
high when compared to zapper consumption.  2.2k for a
high brightness, 10k for a good compromise.

=   R4 : This value gives the output impedance to the
zapper.  It protects the zapper in case of short circuit
and protects the user against a too high current.  1.0k
is an excellent value. Other values could be between
820 to 3300 ohms.

=   R5 : This resistor pulls up the output to about 0.25V
when the 555 drops to 0V.

=   Copper handholds : Usually copper tube 5/8 outside
diameter, 4.5 inches long. (13mm Dia and 115mm long).
Be sure there is no sharp edges or lead solder on the

=   Battery : As shown, this circuit can handle any
battery from 9 to 12V.  In this low current use, Super
Heavy Duty batteries are good enough.

Electronic schematic of a commercial zapper

For the price or effort involved, a 555 or CMOS 7555 is an excellent choice, robust, stable, easy to use...  Its output
will deliver a good frequency spectrum for human use, and, if needed,  its input can easily be connected to a 12V
battery for plate zapping use.

The schematic shown here is the heart of the M.Zap4.  By replacing P1 15 turn trimpot by a linear potentiometer,
you can convert this little adjustable oscillator to a variable oscillator.  Combination of P1 and C2 will permit you to
obtain any square frequency from 2Hz to 100 000Hz.

Even if I like the flexibility of the 15 turn trimpot, you can replace-it by a single resistor Rx.  For the 7555, the
formula for calculating the output frequency will be :

F= 1.38 / (R1+2Rx)C     or     F_kHz= 1380 / (47k+2Rxk)C.nF.
Here are some calculations :
=   For 30kHz,    C2= 100pF,  R1=47k and Rx=206k =>   200k 5% (1/8W or more)
=   For 5kHz,      C2= 470pF;  R1=47k and Rx=270k =>  270k 5%  (1/8W or more)
=   For 2.5kHz,   C2= 1nF,      R1=47k and Rx=252k =>   240k 5% (1/8W or more)
=   For 2.0kHz,   C2= 1nF,      R1=47k and Rx=321k =>   330k 5% (1/8W or more)
=   For 1.0kHz,   C2= 1nF,      R1=47k and Rx=666k =>   680k 5% (1/8W or more)
=   For 15Hz,      C2= 0,1uF,   R1=47k and Rx=436k =>   430k 5% (1/8W or more)
You can expect, with the tolerances involved, a  +/- 20% output frequency.

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.
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
Two zappers
built around the
TN1 schematic
Applied Electronic to Well-Being
This zapper is a good example
of H. Clark`s zapper.  It is not
longer built by Maestro-