Overall :
I have been putting almost
everything aside, to complete and
document this bench test.
This is such a serious matter to

I cannot express with the right
words what are my feelings
about this “zapper”, the
outrageous publicity
surrounding it, and to my point
of view, the criminal reckless
of the people behind this
design, assembly and

The cheapest, badly
assembled commercial zapper
you could find in the market, if
it is powered by a 6 to 9V
battery, will be a better buy
and use than this "thing"
named a “XXXXXXX_Zapper_"

Please, trust a 25year++
electronic designer, used to work
on electrical and industrial control

And when an accident will
happen, your insurance will not
pay, because you have proven
how reckless you have been by
experimenting with such a
dangerous, illegal  device. 
That is life.

The main points here are :
1_  This is a (surplus?)
modified switching power
supply circuit that does not
comply with any safety rule or
agency (UL. CSA, ETL, CE, ...) for
the use intended.
2_  The zapper itself is glued in
a very dangeous way, in the
middle of high voltage
3_  The LED pins are not
isolated and just over the
110/220V input components.
4_  Wires used around the
zapper PCB are not isolated for
a use in such environment.
5_  This device does not
comply with the basic  Dr
Clark's specs
6_  The seller puts a frequency
scale on the front  that has no
accuracy whatever (can we
talk about accuracy with
1200% offset?) between the
written frequency and the
generator frequency.

The worst made,
most dangerous,
most expensive
zapper with an
misleading publicity
I have ever seen.
This Bench Test leads
to an important safety
(The tested zapper is
back on eBay... )

But if you have one,
please, read this before
using it again
If you have one, what should you do, for your own safety?

1-  Unplug the line cord, from the wall and the zapper.
2_  With a pair of electrician cutters, cut this cord in 3 or 4 parts.
3_  Throw these pieces to the garbage can.
4_  Fix a label on the front face with, in red : "GOTCHA"
and fix the remaining device in a paint/picture frame,
to remind you that you just loose 200 bucks, nothing else.
Do a little prayer to your God or Good Luck Angel, because you are still alive.

Don't believe me?   Here is next section : NUMBERS
Section 2 : Numbers and measurements

Mechanical Specs:
Dimensions "box": 4.0 "x2.25" x1.25 "(105mm x 57mm x 30mm)
Input cable (110/220VAC): 36" (90cm)
Output cable : 66" (1.68m)
Electrode Type: two extensible wrist straps with stainless steel "plate" of 0.72"x 0.80" (18mm x 20mm)
These electrodes are fixed to the cord by a stainless steel stud - Not removable. Too small to be efficient

Comments: Input cord has stamped : <PS> E JET xxxxx VCTFK @X0.75mm2 2005 -F-
Could not precisely identify this device, but it seems to be a <PS> : Power Supply; E : Made in China; for an Ink Jet Printer.
Quite unusual for a zapper!

Electrical Characteristics:
No battery.  Works on 110/220VAC input only
No U-Ground, non-polarized Nord American standard plug
Test voltage : N/A
Average current without load: N/A
Average current with load (Dummy Load): N/A

Comments : Frigthening feeling on the safety of this device.  All tests will be done with an isolation transformer in between the line and the xxxxxxxl Zapper, and measurements will be done with an industrial oscilloscope Tektronix THS720P, having 2x 1000V isolated inputs.

Electronic Features:
Preliminary measurements show a square wave form, going from 0V to 9.8V
Note : Positive Offset of at least 0.25V is critical, according to Dr Hulda Clark
Preliminary frequency measurements using the dial control :
Dial : CCW (left-min) (Off) = 753Hz measured
Dial : 100Hz = 753Hz measured 
Dial : 1000Hz = 1.47kHz measured
Dial : 10kHz = 2.16kHz measured
Dial : 50kHz = 4.03kHz measured
Dial : CW (right-max) 100kHz = 328kHz measured
Load resistance at mid-voltage (4.90V): around 132_Ohms = = internal resistance (Basic H.Clark Original zapper = 1k_Ohm)

Comments: There is no Off position.  Output goes as long as power line is connected.
Control is obviously of the very cheap logarithm kind, and not linear, as the dial shows.
Too much is too much
From this point of the test procedure, I decide to open the box before going further.
Hunt for a zapper
This is the inside of your xxxxxxx Zapper
For electronic technicians : You will easily recognize a switching power supply 110/220V_In, 10V - 1A Out
This device has been modified, putting it outside of any electrical legislation : UL. CSA, ETL, CE and alike.
Small colored low voltage wires are zapper's wires, aside with components carrying 110/220VAC
Where is the zapper?!  Follow the small colored wires...
Believe-it or not.  "Something" squeezed and glued
between a transformer and high voltage capacitors
is receiving all the "small colored wires" wich go to
Removing-it from its squeezed room, the zapper
shows up, inside à shrinkable black tube.
Arrows point to the place where the original (+) output
wire has been cut and soldered to the output of the
zapper (Green wire)
Carefully removing its "protection", the tiny PCB finally shows the "made in Germany" design.
Your zapper's Frequency Generator is made out of a  NE555

Everything possible has been done to cut costs, including large tolerance components, out of the standard
circuit, to save a resistor or two, no OffSet resistor...

In quantity, the Switching Power Supply should not cost more than 5 to $7.00 as surplus material.  The
zapper itself, including components and cheap labor, no more than $7.00.  Manuals $1.00 each. 
How much did you pay for it?

Note: "Flashing Led : Locking In frequency"  There is no such "locking frequency" circuit.

With a frequency precision of 753Hz/100Hz= 753%,
50kHz/4.03kHz= 1240%, any number shown on the CAFLR manual are useless.
Fig_1 Received material.
If you have a zapper looking like this one, you have a
very dangerous device you shoud not use.

This zapper is not on sale any more on eBay, or other
identified channels.
2.55kHz, no Laod - 9.96Vpeak - No Offset
2.55kHz, Loaded - 9.28Vpeak - No Offset
1.57mA average, 15.9mA ptp
31kHz, no Laod - 9.8Vpeak - No Offset
31kHz, Loaded - 8.5Vpeak - No Offset
1.58mA average, 16mA ptp
Bench Test

Section 1 : Facts and publicity
Fig_2 : Shown here, the "foot plates" or wrist straps,
permanently attached to the output wires

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

Bench Test Main Page :

Applied Electronic to Well-Being