Re: Fine tuning

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "S & J Young" <youngs-at-konnections-dot-net> 

Hi,

An alternate method is to attach a wire to your secondary toroid the same
length and direction of your streamers (or your expected streamers if a new
coil), and suspend the free end with string.  Then measure the resonant
frequency of the secondary and tune the primary to the same frequency.  I
have had good success with this method - seems to produce dead-on tuning.
The decrease in Fsec usually is something different than 7%.

--Steve Y.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, February 20, 2004 11:44 AM
Subject: Re: Fine tuning


 > Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>
 >
 > Hi,
 >
 > Richard Hull always suggested to tune the primary 7% lower than the
 > secondary to account for streamer loading.  In my case, that always seemed
 > to work very well.  Then one can fiddle with it a bit to get the longest
 > streamers, but it will be very close to start.  Also note that moving the
 > coil to different areas can affect tuning a bit.
 >
 > Cheers,
 >
 >          Terry