[Amps] Holes vs. screen for chassis ventilation?

[Ron Youvan]

Dan Levin wrote:

/*snip*/
> I've searched for answers, but all I found was some general stuff that
> suggested that smaller holes were better, and to keep holes under
> lambda/30 if possible.  My guess is that fine grid aluminum mesh (as
> in window mesh) would do better than holes - but since I am having
> Protocase build my chassis, patterns of small holes are actually
> easier for me to implement (since they can cut those, but I have to
> deal with the screen myself).

> Anyone have either a) answers or b) pointers to good sources?

   Small hole hardware cloth and bolts with fender washers on the inside.
-- 
    Ron  KA4INM -