Re: Secondary ground terminations
Subject: Re: Secondary ground terminations
Date: Wed, 11 Jun 1997 19:25:32 -0400 (EDT)
In a message dated 97-06-11 05:27:45 EDT, you write:
I was planning on plugging the base of my sec tube with a 3/8-
1/2" disk of Plexiglass with a 1/4-20 threaded insert in the
center, and gluing a second 3/8" disk above this insert to
insulate and plug the insert hole. The insert would be used to
mount the secondary assy.
Would it be reasonable to use this insert as a ground connection,
running a thin copper strip radially outward on the base of the
lower disk from the insert to the bottom tail of the secondary?
That sounds similar to how I have both of my secondaries set up. I use
1/2" thick piece of acrylic cut to just fit into the secondary and glue
to a larger piece of acrylic that I use to mount to the main base for
coil. I glue this on to the bottom of the secondary and use nylon
nylon bolts to bolt the thing down. I solder a lug on to the bottom of
secondary winding then use a brass bolt in one mounting position to go
through the grounding lug and terminate under the mounting platform to
main RF ground.