[Lowfer] Question on building homebrew variable caps...

[Ralph Hartwell]

> consider a set of fixed cap plates separated by glass plates
> now sliding the glass in and out between the plates will make
> the cap vary. Advantage would be a cap with good mechanical

Glass is a very lossy dielectric at RF.  Ask the guys who build Tesla
Coils.  I have popped more glass plate caps than I want to think about.
Much better is PVC plastic.

73,

Ralph   W5JGV / WC2XSR / 13

The current On-The-Air status of WC2XSR/13 is available at:
http://home.att.net/~shmrg/wc2xsr-13_log.htm

My 600 Meter Research Group files are at:
http://home.att.net/~shmrg

My Home Page is at:
http://home.att.net/~ralph.hartwell
Home of the Rife Biomedical Research Web Ring