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Old June 22nd 07, 04:36 AM posted to rec.radio.amateur.antenna
John Smith I John Smith I is offline
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First recorded activity by RadioBanter: Dec 2006
Posts: 1,154
Default Guy from university physics ... Eureka! A picture!

John Smith I wrote:

...
Here is the URL of the actual .pdf document and is chock-full of pics,
details, and description:
http://www.freepatentsonline.com/7187335.pdf

Now there is no reason that anyone cannot confirm or deny the hype ...

JS


These images:
http://assemblywizard.tekcities.com/...ottomhelix.jpg
http://assemblywizard.tekcities.com/...ading_Coil.jpg
http://assemblywizard.tekcities.com/both.jpg

Depict a "test fixture" I kludged together. It allows quick changing of
coils, wire conductors between coils, top hats, tap points, etc.

A 1/2 pipe flange is screwed onto the board. A 3/4 slip to 1/2 threaded
pvc adapter is screwed into the flange and holds the 3/4 pvc pipe
errect. All connectors which are clamping the wires are ground clamps
purchased at home depot, they are made to clamp onto glavanized/copper
pipe and provide a grounding point for a ground wire.

1) 1/2 pipe flange $2.09
2) (5) 3/4" and 1" ground clamps (clamps both sizes) $1.49 X 5 = $7.45
3) 10 ft. of 3/4" pvc pipe $3.19
4) Board dumped in my yard by some bum! $free

materials $12.73
tax $1.18
----------------
total $13.75

Now there is no reason for anyone not to experiment a bit ... the
fixture is far from ideal, your improvements are welcome--it is quick
and dirty to construct!

Regards,
JS