Re: Primary Coil Design
Subject: Re: Primary Coil Design
From: mrbarton-at-ix-dot-netcom-dot-com (Mark Barton)
Date: Sat, 30 Mar 1996 01:47:53 -0800
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Say, why don't you shape a work coil into a Tesla primary and wind a
secondary to match your operating frequency. At 25KW continuous power
you'd have a beautiful whipping, hissing, spitting, display. I built a
FET driver that operated at 8KW continuous which produced a 4 foot
sheet of electrical flame that sounded like hell's welding torch.
Several years ago I combed an induction heater surplus yard with just
this idea in mind. Do it, do it, do it.
>I,ve been working with induction heaters in the 200 kHz to 600 kHz
>frequency range for about 5 years now. One common material that is
>easy to heat inductively is graphite. It has a resistivity about 800
>times higher than copper. This means it gets hot a lot faster than
>copper does in the same RF field.