Hi reflectees !
Although it is very interesting to hear about the many ways of making HF caps
for gamma matches, i want to bring about another consideration. Most of the
caps described are representing a big fire hazard ! Inflamable dielectrics,
like coax dielectric, circuit boards, PVC pipes etc, can arc over and then
start burning, which might ignite a nice fire in Your backyard or in the
bushes. I would strongly recommend the use of vacuum variables for that purpose
!
I have talked to people, that had partly carbonized homebrew caps, which of
course worked as spark gaps and trashed the band with a broadband hiss of
considerable strength.
I have been there and done that, as You would say, and the small investment in
a vac-C is beneficial in all aspects of good engineering.
73 de wolf df2py
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