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thylantyr 21st March 2003 06:57 PM

Heatsink suppliers? PCB dimensions ?
What are the popular heatsink suppliers,
low cost to high cost, simple to exotic heatsinks
for high powered amplifiers? I wanted to make
a list of common dimensions from these heatsinks
so I can try to figure out what PCB board dimensions
to use for the Aussie Amplifier AV800 project.

What I'm trying to figure out is .......
If I do printed circuit layout on CAD, would it be best
to make the board dimensions compatible
for various types of heatsinks depending
on what power level you plan to operate the

I want a flexible pcb design that allows small, medium,
or large heatsinks depending on application, perhaps
mounting the pcb directly on the heatsink with standoffs
and the transistors clamped to a strip of metal
that is also mounted on the heatsink. similar to what
the home audio folks do with their multichannel
amplfiiers, where each channel is a module.


Should I abandon this idea and just mount "whatever"
pcb on a 1/4" aluminum plate, then mount "whatever"
heatsink on the plate ?

Mattyo5 21st March 2003 07:13 PM

check this out :)

I bought 2 boxes of heatsinks...6 sinks total. Each is 19x15x1.5" and is rated at about .2C/W :-D Check it out! The heatsinks are GORGEOUS!!

-Matthew K. Olson

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