[Lowfer] Musical capacitors and dissipation loss
Peter Barick
[email protected]
Fri, 14 Nov 2003 16:25:47 -0600
Yes I've heard about hand-made "trombone" Caps. Think Mike also toyed
with them. But I'm thinking of a QST article a few yrs back. A ham made
a Cu tubing loop for 160M and tuned it w/ such a Cap. Think he used
Teflon Dialectic. His tuning mechanism was a nice looking structure.
Maybe others can add more.
Recall his had two "stationary" and parallel tubes and the slider was U
shaped and inserted via a threaded adjuster. Requires a good fit to
avoid wobble.
So there goes those contact problems.
Peter
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>>> [email protected] 11/14/03 03:40PM >>>
Hello Again,
Anyone ever hear of a trombone capacitor? Basically 2 pieces of copper
tubing that are slipped inside each other, isolated with a dielectric
such as teflon.
...