[Boatanchors] Optimum L/C ratio chart(s).

[Al Klase]

Ken,

The classic values are 365 pF and 250 uH.  This comes about because of 
the high distributed capacitance of old fashioned coils like close wound 
solenoids.  The issue is being able to reach both ends of the band.  
Things get a lot easier with modern iron-core inductors.  Charts and 
equations won't help much if you can't measure the self-resonate 
frequency of the coil.

Al

On 8/3/2009 12:15 PM, KEN wrote:
> Fellows,
>
> I am searching for a chart that will give me the optimum L/C ratio for the frequencies of the AM Broadcast Band.
>
> I seem to recollect there was one in the large book, "Gharardi Radio Physics Course" (Not sure of spelling).
> But, can't locate my old copy - may be gone!
> Any help appreciated&   take care,
>
> Ken   N5CM
>
>
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-- 
Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/