[TowerTalk] Coil Design

[TexasRF at aol.com]

And a variation of this scheme is to drill holes near the edges  of the 
insulator. Then you can "screw" the inductor through the  holes.
 
Poly carbonate material is more robust than plexiglas. Lexan is a well  
known variant of poly carbonate.
 
73,
Gerald K5GW
 
 
 
In a message dated 7/31/2015 11:48:36 A.M. Central Daylight Time,  
infomet at embarqmail.com writes:

I think  this is optimistic, considering skin effect.
I’d use 6ga solid or, to be  really neat, 1/4” copper tubing.
Either could be supported by a sheet of  plexiglass with notches along the 
edges.
You wind on a form and then thread  the coil onto the support.
See woodworkers’ box joint on Google, if you  want to make accurate  
notches.
https://www.google.com/search?q=box+joint&oq=box+joint&aqs=chrome..69i57.443
1j0j7&sourceid=chrome&es_sm=93&ie=UTF-8

The  fancy CB coils are neat, but don’t have enough inductance.
Quick and dirty  (my specialty) would be strip some 10ga romex, leave the 
insulation on, and  wind on PVC  pipe.
WL
_______________________________________________



_______________________________________________
TowerTalk  mailing  list
TowerTalk at contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk