pentalab wrote:
<snip>
### I'm into high level experimentation... up to a point. Between soft x rays, heat, globs of RF, 8000Vdc, etc.... Teflon seemed like a sure fire method/zero brainer. [u know it's gonna work ]
There's nothing better!
<snip>
### agreed.... but I didn't want to make a major project out of a chimney. The trbl with teflon sheeting, etc... is u gotta anchor it to the chassis. At least with my original Straight up and down stove pipe chimney..it was 1/4" thick teflon, and so heavy, it's weight alone held it to the chassis. As noted b4... it restricted the intake air too much.
Jim, have you considered sub mounting the tube? Current methods dictate cutting lots of holes around the tube to allow the air to flow. If you sub mount the tube by an inch, mount it on a solid aluminum or, better still, copper plate, you can get LOTS of air up around the seals and up to the anode without a huge wide pattern of holes around the tube. Then a straight chimney will work and you're back to a nice Teflon chimney that's easy to make though a little expensive.
<snip>
73, Tony W4ZT
