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Author Topic: Getting the most out of the EB104 design - It can easily be done  (Read 9456 times)
M0HCN
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Posts: 473




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« Reply #15 on: October 21, 2012, 10:47:32 AM »

Extruded heatsinks are basically never flat, they almost always need milling.
More alarmingly, the mounting face of the mosfet itself is sometimes not particularly flat, and some light grinding there can also help a lot.

I have wondered about using CPU coolers, the better ones of which are sometimes supplied milled (And are usually not any more expensive then a conventional heatsink).

Regards, Dan.
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N8CBX
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Posts: 128




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« Reply #16 on: October 22, 2012, 05:45:44 AM »

Extruded heatsinks are basically never flat, they almost always need milling.

That is true. I "flycut" my heatsink flat on a Bridgeport mill. The copper spreader was flat & parallel pane enough to use as is.
Jan N8CBX
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