[Elecraft] Toroids - Effect of Winding Spacing on Inductance and Distributed Capacitance

Tom Zeltwanger KG3V at ChesBayVA.com
Mon Feb 26 11:13:04 EST 2007


Jack,

Sounds interesting but the link in your e-mail 
(http://g4oep.atspace.com/coil/coil.htm) does not work for me.

Tom KG3V

Quoting Jack Smith <jack.smith at cliftonlaboratories.com>:

> Since toroid inductors are used throughout the K2, and since few other 
> topics generate as much discussion and the care and feeding of 
> toroid-wound inductors, I wanted  to mention that Andy, G4OEP, has 
> recently completed an interesting study of the effect of turns spacing 
> upon inductance and distributed capacitance, which may be read at 
> http://g4oep.atspace.com/coil/coil.htm.
> 
> I also recommend Andy's other work, linked at his home page 
> http://g4oep.atspace.com/index.htm,
> 
> I've also added a new page to my site showing the effect of voltage on a 
> variety of ceramic capacitors. 
> http://www.cliftonlaboratories.com/capacitor_voltage_change.htm. It 
> provides at least a start of an answer to the question "when is a 0.1uF 
> capacitor not a 0.1uF capacitor"?
> 
> Jack K8ZOA
> www.cliftonlaboratories.com
> 
> 
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