> People have been claiming health benefits from magnets (lodestone)
> since ancient times.  There have never been any studies which show
> they produce results any greater than a placebo.

That is more-than-likely true of permanent static magnetic fields.
PEMF though does seem to have benefits. David's query is whether
a small personal device can produce the same results as a more
"insitutional" machine. If the small personal device can generate the
same field changes then perhaps the customer really can benefit.

You'd expect that wouldn't be beyond the capability of modern,
or even recently modern, electronics. What's it take ? A transistor
or two and a coil ? A 555, a switchmode IC ?

I've got a couple of TENS and biofeedback units here that were
cheap but every bit as good electrically as a swish clinical unit,
and I'd suspect a PEMF machine is also not that difficult to make
with common inexpensive components.

Joe
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