RE: Tesla motor receiver

["Richard Barton" <richardbarton-at-caving5.freeserve.co.uk> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Thanks.....
I've built the thing.... but I haven't fitted an antenna to it yet. I have
in
mind a disc of steel, around 10" diameter. I've fitted various components
to a small plinth, including a finely wound coil, but I'll try it out
without
the coil in circuit first.... just an antenna, diode and motor (remaining
terminal of motor grounded). and see what happens.
My coil lights 6ft lighting tubes from 6ft away, so if I place this little
contraption inside that field.
Incidentally, I can get a filament-type strip light to glow in quite close
proximity to the coil, i.e. with the brush hitting it, but without the other
terminal grounded in any way, but only with a glow.
							Richard.


-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Wednesday, August 30, 2000 4:01 AM
To: tesla-at-pupman-dot-com
Subject: Re: Tesla motor receiver


Original poster: Hollmike-at-aol-dot-com

In a message dated 8/29/2000 7:07:55 PM Mountain Daylight Time,
tesla-at-pupman-dot-com writes:

> But how do we lower the frequency back down to a rate
>  that a diode can handle ?
>               ~Richard Barton.
>
   Are all diodes that slow responding that they couldn't rectify a sub-AM
radio frequency?   Never looked into this, so I cannot say.
    One option might be to build a sender and receiver with very fine wire
and use several thousand turns to get a really low frequency(plus use a
really large topload).   For this to work, you probably want to prevent
sparks from coming off the topload(by having that really large one)  to
avoid
loading down the sender with the arcs and losing the ability to transmit a
signal.
   On the other hand, I seem to remember that Tesla made an induction motor
from a simple disk placed in proximity to an induction coil.  Perhaps this
might be an avenue to explore.   Maybe you could use a coil wound to the
frequency of the sender and place a disk of something like aluminum or
copper(ie a non ferromagnetic metal) in fairly close proximity to the
reciever coil.  You wouldn't even need a primary coil for the receiver if
that worked.
Mike