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Old 13th Sep 2017, 5:11 pm   #30
kalee20
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Join Date: Feb 2007
Location: Lynton, N. Devon, UK.
Posts: 7,059
Default Re: Re-anodising heatsinks?

Quote:
Originally Posted by M0FYA Andy View Post
Quote:
Originally Posted by Craig Sawyers View Post
A guy I know in Sweden has a plater that takes a black anodised heatsink, strips the anodising and then gold plates it. Must ask him who does this, hopefully in a cost effective way.

This is what his gear looks like
What a silly idea! Heatsinks are intended to dissipate heat, not just look pretty. Obviously an audiophool idea................

Andy
Here is a selection of small heatsinks in a sample box from Aavid Thermalloy. There's black, red, blue, gold, natural, and plain. While the anodising may make only a small difference to performance, they sure do look pretty.

I used to work for a well-known power supply manufacturer, their approach with large heatsinks for highly-dissipating linear power supplies was to black powder-coat the heatsinks! As far as I know, there was no study done to determine whether plain, black anodised, or black powder-coated were best. I suspect not very much difference, as others have commented!
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Last edited by kalee20; 13th Sep 2017 at 5:25 pm. Reason: clarification
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