To: lewise@inetport.com
Cc: qrp-l@Lehigh.EDU
Cc: adams@sgi.com
Cc: Zlau@arrl.org
Subject: ONE-HALF TURN TOROID = YES
No takers on 1/2 turns on toroids huh??
KA5T - Larry Wise - Georgetown, Texas - lewise@inetport.com
********** Secret Method of Winding 1/2 Turn Toroids **********
I was going to save this for the QRP Quarterly Idea Exchange,
but it looks like it might be better to share it here and now.
I used a T-68-2 º
on my test model °°º°°
°°º°°
°°º°°
º
ÍÍÍÍÍÍÍÍÍÍoÍÍÍÍÍÍÍÍÍÍ <--{Single Turn Tapped}
{1/2 Turn wire} ÍÍÍÍÍÍÍÍÍÍ»
°°º°°
°°º°° <-- {Small Hole Drilled Core}
°°º°°
{Epoxy} ________(_º_)________
ÛÛÛÛÛÛÛÛÛÛºÛÛÛÛÛÛÛÛÛÛ {PC Board}
º
Side View of Modified Toroid Core Mounted Vertically
Yes, boy's and girl's it can be done. Warning, This should be done only
with proper "EYE PROTECTION". If in doubt, DON'T DO IT!
Moto-tools are great. OBTW - You can also cut a nice Slot in the core
with a cutting wheel on the moto-tool. Great for making RF Antenna
Current Probes.
(C) 1997, G. Danny Gingell, K3TKS@abs.net
Lets hope the graphics work :-)
Chuck,
You have to use a bit more imagination and keep an open mind. :^)
Zack,
I see you and I had the same ideas :^) Just goes to prove my point.
QRP DX TU (C) 1986, G. Danny Gingell, K3TKS@abs.net
The Maryland Milliwatt QRP Reference Library, (301)572-6789
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