Secondary Frequency(fwd)

To: "'Tesla List'" <tesla-at-pupman-dot-com>
Subject: Secondary Frequency(fwd)
From: Tesla List <tesla-at-stic-dot-net>
Date: Tue, 18 Aug 1998 23:57:23 -0500
Approved: tesla-at-stic-dot-net


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From:  Malcolm Watts [SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent:  Tuesday, August 18, 1998 5:39 PM
To:  Tesla List
Subject:  Re: Secondary Frequency(fwd)

Hello Reinhard,

> 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)

He is closer (probably a a bit less than 418kHz) 

> Coil B
> 10.84" long
> 6" diameter
> Also wound with 1230 feet AWG 28
> He says 275kHz (I say 200 kHz)
> 
> Who is right??

Without resorting to the calculator for this example, a bet says he 
is again. You used wirelength in both your calcs, right?

Malcolm