Re: Grid Dip Oscillator

To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
Subject: Re: Grid Dip Oscillator
From: Tesla List <tesla-at-stic-dot-net>
Date: Fri, 28 Nov 1997 22:35:59 -0600
Approved: tesla-at-stic-dot-net


From: 	Alfred A. Skrocki[SMTP:alfred.skrocki-at-cybernetworking-dot-com]
Sent: 	Thursday, November 27, 1997 1:31 AM
To: 	Tesla List
Subject: 	Re: FW: Grid Dip Oscillator

On Sunday, November 23, 1997 2:38 PM Malcolm Watts
[SMTP:MALCOLM-at-directorate.wnp.ac.nz] wrote;

> Hi Paul,
> 
> > From:   Anderson's Publishing[SMTP:andersons-at-geeky1.ebtech-dot-net]
> > Sent:   Thursday, November 20, 1997 7:55 PM
> > To:     tesla-at-pupman-dot-com
> > Subject:    Grid Dip Oscillator
> > 
> > I was looking through the first issue of "On The Air!" magazine, a
> > magazine for ham radio, and saw an article on building a device called a
> > grid dip oscillator(or a drain dip oscillator).  Has anyone any experience
> > with these?  The article says that you can use it to tune a circuit to a
> > specific resonant frequency without powering the circuit.  You set the
> > dial to the desired frequency, then you adjust the circuit until the meter
> > on the front dips.  Sounds like a perfect tool for tesla coils.  Any
> > thoughts?  TTYL!
> 
> Not really. You have to get too close to the secondary coil to use 
> the thing and that seriously affects frequency.
 
Not so, Malcolm! The grid dip meter was a very effective instrument to tune 
tank circuits with, the trick was learning how not to over couple to the 
meter. When loosely coupled to a coil a dip meter has no noticeable effect 
on the coils resonant frequency.


> 
> 
> 
> 
> 
                               Sincerely

                                \\\|///
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                           Alfred A. Skrocki
                   Alfred.Skrocki-at-CyberNetworking-dot-com
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