[AMRadio] coils


Greg Schultz Sr w5ry at cox.net
Sun Jan 8 22:09:15 EST 2006


Thanks to everyone on the list who responded with great ideas and
sources including the ebay seller KQ4BY.  I will probably go that route
since I intend to use the middle section of the coil for the link, so I
will need a fairly large coil.

Greg W5RY

-----Original Message-----
From: amradio-bounces at mailman.qth.net
[mailto:amradio-bounces at mailman.qth.net] On Behalf Of Brett gazdzinski
Sent: Sunday, January 08, 2006 5:49 PM
To: 'Discussion of AM Radio'
Subject: RE: [AMRadio] coils

If it does not need to be real small, one way to get a good coil 
is to wind one out of copper tubing.
Home depot sells various types, small/thin, bigger and thicker...
I made the pi net tank coil for the pair of 4D32 rf deck out of copper
tubing, 
I soldered big wire terminal lugs (the crimp on type) on the ends of the
coil and 
bolted it to large ceramic standoff insulators.

Here is a link to a picture:

http://wa5bxo.shacknet.nu/N2DTS/new%20coil-a.JPG

My thanks to wa5bxo who still has my pictures up!
The wine bottle in the picture was used to wind the tubing on.
The home brew receivers are in the background...

Brett

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