On 1/23/2014 10:45 AM, Pete Smith N4ZR wrote:
capacitor.. Now all I have to do is to find a source of some
appropriate chokes for the final tee, and my problems may be behind me.
I was just looking at some Hammond chokes, no. 1532h - 100 uH, rated for
maximum DC current of 500 ma., solenoid wound, self-resonant frequency
of 12 MHz. Sound reasonable?
73, Pete N4ZR
See:
http://www.vishay.com/docs/34013/ih.pdf
Here is a product line from Vishay (used to be Dale)
that gives you a lot of options. Unfortunately, you
have to characterize them at RF yourself. I have
used them many times for RF chokes and the RF performance
is acceptable. What is especially good about these
is the really high DC rating.
In special purpose applications, I have tuned the
self resonance by peeling off turns. The wire is
held on by glue that lets go fairly easily. I
made channel 2 TV blocking filters this way.
Rick N6RK
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