Re: Secondary winders and turns counters

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

Original poster: "Terry Fritz" <teslalist-at-qwest-dot-net>

Hi Scott,

Of course, few of us "really" need to know the exact number of turns on a 
coil ;-))  However, I have found it very easy to mark the coil with tape at 
say every 6 inches and photograph the coil with a digital camera.  Then one 
can blow up the pictures with a picture program and easily count the turns 
on the much enlarged pictures.  You can even digitally mark off the turns 
as you go on the screen or number them if you wish.  It really is easy and 
not much can go wrong.

Cheers,

         Terry

At 07:46 PM 1/14/2003 -0800, you wrote:
>Re the usefulness of turns counters on a secondary winding jig:
>
>Although unnecessary for winding a stand-alone secondary, a turns counter 
>is very useful when you are trying to wind a pair of matched secondaries 
>for a bipolar coil. With matched coil forms and attention to detail when 
>winding, you can get the resonant frequency of a pair of secondaries 
>matched to within a few kHz.
>
>Personally, I find a turns counter "useful" because I like to keep a 
>detailed log of all the parameters of every secondary I wind: physical 
>dimensions, wire gage, turns count, DC resistance, inductance, resonant 
>frequency (both unloaded and with topload), etc.
>
>Scott Hanson
>
>