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Small tesla coil (1sq ft) findings
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From: David Huffman [SMTP:huffman-at-fnal.gov]
Sent: Monday, June 22, 1998 8:41 AM
To: Tesla List
Subject: Re: Small tesla coil (1sq ft) findings
What is the top load? I estimate the coil to resonate at 1MHz and I'm
surprised you get spark length that long. What is the spark characteristics,
i.e. plasma like or jagged/forked.
I like the small coil challenge and would like to hear what others have
done. I have a 1.75" x13" that I will have to setup, tweak and measure.
Dave Huffman
>----------
>From: Jeff Corr [SMTP:corr-at-enid-dot-com]
>Sent: Thursday, June 18, 1998 12:45 AM
>To: tesla list
>Subject: small tesla coil (1sq ft) findings
>
>Hello all... in order to have a tesla coil in my college
>dorm room next year :-) I had to construct a special one.
>
>It is mounted on a 12"x12" plywood section, the secondary being only
>12" tall.
>
>The reason I post this here is I find it interesting this coil can produce
>12" long sparks, the length of the coil itself.
>
>Just thought that someone else might be interested in duplicating this
>coil as it is small enough to carry anywhere, and still performs very
>well.
>
>
>Here are the specs :
>
>power level - 9kv, 30ma 270VA
>
>capactitor - .004uf , rated at around 12kv (physical dimensions 8" long, 3"
>in diameter)
>
>primary - helical, 10 turns of #20 solid copper, turns 1/8th inch apart.
>
>secondary 1.5"x12", #32 copper enambled.
>
>Spark gap, single gap, half an inch apart.
>
>No safety gap, no chokes, just neon, primary, secondary, gap, and cap.
>
>
>
>
>Jeff Corr
>2114 Monitor
>Enid, OK 73703
>http://www.harvestcomm-dot-net/personal/corr/
>
>