[Amps] CHASSIS

[Bill Turner]

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