What is the best aluminum for heat sink?

May 05, 2009 30 Replies

snipped-for-privacy@zekfrivolous.com (GregS) wrote in news:gtpv5h$goe$ snipped-for-privacy@usenet01.srv.cis.pitt.edu:

current pennies are copper plated ZINC. Older ones are a copper alloy,and ring differently when bounced off a hard surface.

Jim Yanik jyanik at kua.net

I would've thought that any type would be fine for this purpose.

W . | ,. w , "Some people are alive only because \\|/ \\|/ it is illegal to kill them." Perna condita delenda est ---^----^---------------------------------------------------------------

an rf transistor.

Hopefully it was a pre-1976 penny, as the Zinc that makes up 98% of a modern penny is a poorer conductor than both Cu or Al.

They have been growing diamonds for over 60 years.

Don Klipstein wrote: [...]

Indeed. The most important factor would be that the spacer be as flat as possible on both sides, for best heat transfer.

W . | ,. w , "Some people are alive only because \\|/ \\|/ it is illegal to kill them." Perna condita delenda est ---^----^---------------------------------------------------------------

grease

be

Probably just as well - it'd be a bugger to machine...

W . | ,. w , "Some people are alive only because \|/ \|/ it is illegal to kill them." Perna condita delenda est ---^----^---------------------------------------------------------------

What's the heat sink made out of?

Can it be machined to include a suitable mounting pad? This will eliminate one junction.

Paul Hovnanian mailto:Paul@Hovnanian.com ------------------------------------------------------------------ Due to recent budget cuts, the light at the end of the tunnel has temporarily been turned off.

Only good for whale containment systems.

Stretch my old ring out.

I Am Kirk Johnson. "Anal Stretching, Wrenching & Expanding Specialist"

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sink.

interface on an rf transistor.

=46or those that may be interested: =20

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