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Secondary Frequency(fwd)
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From: Sulaiman Abdullah [SMTP:sulabd-at-hotmail-dot-com]
Sent: Thursday, August 20, 1998 5:48 AM
To: tesla-at-pupman-dot-com
Subject: Re: Secondary Frequency(fwd)
Hi,
my opinion...you're both right/wrong !
both coils having the same length of wire would be quarter-wave
resonant at 200 kHz, I guess this is the frequency Mr. Tesla
would have operated the coils at.
Without top-loads the resonant frequencies would be more like
your friend says due to lower inductance etc.
Judging from other 'coilers' results both coils would perform better
with top-loads greater than that calculated for 1/4 wavelength
operation.
The good news is that you're both wrong/right and can now
build many different coils, test them all against your respective
theories, and share the results with us all !!
bye ... Sulaiman
>To: "'Tesla List'" <tesla-at-pupman-dot-com>
>Subject: Secondary Frequency(fwd)
>Date: Tue, 18 Aug 1998 09:00:00 -0500
>From: Tesla List <tesla-at-pupman-dot-com>
>
>
>----------
>From: RWB355-at-aol-dot-com [SMTP:RWB355-at-aol-dot-com]
>Sent: Tuesday, August 18, 1998 12:31 AM
>To: fwd
>Subject: Secondary Frequency(fwd)
>
>Hi to All,
>
>
>Below are two given coils.
>What is the frequency of each coil? Another coiler and I disagree on
the
>resonant frequency of these two coils. Can somebody help?
>
>Coil A:
>21.7" long
>3" diameter
>Wound with 1230 feet AWG 28
>He says 418kHz (I say 200 kHz)
>
>Coil B
>10.84" long
>6" diameter
>Also wound with 1230 feet AWG 28
>He says 275kHz (I say 200 kHz)
>
>Who is right??
>
>Thanks,
>Reinhard
>
>
>
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