Re: carbon gaps

• To: tesla-at-pupman-dot-com
• Subject: Re: carbon gaps
• From: "Edward V. Phillips" <ed-at-alumni.caltech.edu>
• Date: Thu, 12 Sep 1996 17:47:41 -0700 (PDT)

Re: Arc transmitters
	I have experimented with small oscillating arcs here, and
would very much like to contact anyone else who has.  Was able to
get oscillations up to about 2 MHz, using "AAA" size flashlight cell
carbons under kerosene.  Signal had lots of AM and FM .  Listening to
it on a receiver with beat oscillator it sounded "bubbly", which
indeed it was.  At frequency of around 100 kHz things were much more
steady, and could get oscillating circuit RF currents of a couple of
amps or so.  This things runs on about 100 VDC, using conical heater
elements as ballast.  The old arcs used magnetic blowout coils to
make things more controllable, but haven't tried that here yet.  No
value to these experiments escept nostalgia.
Ed Phillips

[ At the lower frequencies, could this be used to drive a coil?  -- Chip]

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