ORIGINAL MESSAGE:
At 06:22 AM 3/16/2006, k7fm wrote:
>What wood does not do is shield rf. But, that can be solved fairly easily.
>Many years ago I built a regen receiver using wood. But, I found the hand
>capacity, when I got near the front panel, changed the frequency (bad). I
>solved the problem by covering the inside of the wood panel with household
>aluminum foil, which was connected to the frame of the tuning capacitor.
>Still have that gem.
*********** REPLY SEPARATOR ***********
One other advantage to non-metal construction is it makes you think
about ground points. A metal chassis is wonderfully convenient for
grounding things but can easily lead to unintended ground loops. A
non-metal chassis forces you to ground things individually and, where
appropriate, to a single ground point.
Not a cure-all for every ground loop issue, but it can help.
Bill, W6WRT
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