>This is how I do it. Resonances typically move about when the choke is
>installed. so, I measure resonances with the choke in place, connected
>to the anode circuitry and the choke not shorted with a clip-lead. If
>there is a dip within 6% or so of an operating freq., I remove turns to
>move the problematic resonance to a safe parking area a bit higher in
>freq.
I forgot to mention this step! Yes, it's always a good idea to measure
it in the circuit where it will sit. Shorting it and measuring the dip
should be done just for an initial rough guess while doing your initial
winding of the choke.
73,
Jon
KE9NA
--------------------------------------------------------------------------
Jon Ogden
jono@enteract.com
www.qsl.net/ke9na
"A life lived in fear is a life half lived."
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