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Old August 25th 10, 09:43 PM posted to rec.radio.amateur.homebrew,sci.electronics.design,sci.physics.electromag
John Larkin John Larkin is offline
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First recorded activity by RadioBanter: Oct 2006
Posts: 21
Default Heating in 4-1/2 turn inductor

On Wed, 25 Aug 2010 13:36:29 -0700, Salmon Egg
wrote:

In article ,
"amdx" wrote:

"amdx" wrote in message
...
Several years ago while making inductors for tuning a class E amplifier we
end up with a 4-1/2 turn inductor. The inductor used a 3F3 potcore, gapped
I think,
but it has been awhile. The inductor was driven hard but below saturation.
The problem; the 1/2 turn got HOT. Four turns or five turns were ok.
My physicist friend had an EE verify the problem 2000 miles away.

So, can anyone tell me why 1/2 turn would make such a difference in the
heating?

Thanks, MikeK


How do you make a half turn inductor?

Bill


Bring wires out opposite slots on a pot core. I've seen it do strange
stuff, too.

John