[Amps] making aluminum heat sinks black

[Paul Christensen]

> It could be that they think the same as I do. Any time you anodize
> aluminum, there is actually a coating formed 1-2 mils deep on the
> aluminum.

Anodizing aluminum increases themicity and results in a substantially better
heat radiator over that of bare aluminum.  The vast majority of heat-sinks
are anodized, usually black or gold.  The anodizing process is a job best
left for the experts.   There should be someone in your area that
specializes in the procedure.

Paul, W9AC