Alvin,

Now I am getting confused, did you misquote the voltages?
(Not being critical, just trying to figure what is working and not!)

Is the Croft 12.5 P-P  a 40% duty cycle pulsed DC wave and
thus 5Volts average DC? His 'new' unit says it is 5 VDC, is
he talking about the same thing you are, 12.5 V P-P?

Did you mean the Beck is 27 volts peak AC (not DC)?

Also your switch converts from 3.97 Hz to 4 Hz and 100Hz,
do you mean you added the 100 Hz circuitry? Is there a
crystal and divider for the 3.97Hz or is that just what your
unit happens to output?

The "triangle wave works best" would essentially remove the
harmonics of a square wave, my understanding of the main
"non-frequency critical" feature of the zappers! Have you tried
a sine wave? It should effect you the same as a triangle,
albiet a little harder to generate at 4 Hz.

Can you explain what you are treating that seems to be better
for you? I am looking for a simple repeatable experiment to do
some testing with but I am not sick! With silver I can burn
myself and in seconds verify the silver prevented pain or
damage. Actually, I do it a lot because the soldering iron is
always in the way of a finger and if I soak the spot within a few
seconds there is absolutely no pain or blister, even though
there is a burning flesh smell and some of  the fingerprints are
removed.

[email protected]
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At 05:57 PM 3/30/2000, you wrote:<snip>
> the croft units output is 12.5 volts peak to peak  4.5 volts dc and
the output frequency
> of mine is 32.5 kc   Bob Becks unit is 55 volts peak to peak  27
volts dc and output frequency
> is 3.97 hz..I have a switch installed which converts to a 4hz and
100hz  frequency and a
> square wave switched to a modified square (pyramid) wave,,I use it
mostly on at 4hz in as I find that setting best for me. and it really
works.
> Regards Arose
></snip>