[Elecraft] Buryflex all the way to K3?

[Wes Stewart]

Jim,

You say that foam dielectric is more costly and provides no benefit at h-f.  If you are only considering dielectric loss this is true, but the lower effective dielectric constant allows (requires) a larger center conductor (for the same overall diameter) which fulfills your "big copper" idea.

On a related note, this increased center conductor diameter also requires special connectors sized for the cable.

Wes

ps. Your first draft says, "Second draft"

If you look at my website, you'll find a first draft of a 
tutorial on coax and stubs that addresses this issue. Any 
comments you might have would be appreciated. 

http://audiosystemsgroup.com/Coax-Stubs.pdf