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Bronze heatsinks, split from advanced GainClone thread
Bronze heatsinks, split from advanced GainClone thread
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Old 28th March 2006, 06:19 AM   #51
Elso Kwak is offline Elso Kwak  Philippines
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Quote:
Originally posted by Upupa Epops
Sound of heatsinks ? Do you really mean it seriously ? I'm curious, what will be your next " experience " .... Sound of PCB ? Sound of power station ? Sound of maple ? Or what ? I'm wailing....

Yeah, yeah round the sharp corners of the PCB, pour some laquer over it, C37? Teflon sounding better than epoxy or poly iso-cyanate ester? Or better p2p wiring? It is up to you! Life and engineering is about choices you know
BTW I have a can of Maple juice. What should I do with it?
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Old 28th March 2006, 06:23 AM   #52
dfdye is offline dfdye  United States
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Quote:
Originally posted by tomtt
would granite make a usable heatsink?
Short answer: No.
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Old 28th March 2006, 06:24 AM   #53
Elso Kwak is offline Elso Kwak  Philippines
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Quote:
Originally posted by dfdye
Short answer: No.

Short explanation: high thermal resistance
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Old 28th March 2006, 06:46 AM   #54
dfdye is offline dfdye  United States
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WARNING: CONSTRUCTIVE POST!!!!! Some may wish to disregard this post!

Quick question for Peter if you are still keeping up with this thread: what brass alloy are you using for the heatsink? Also, what thermal paste or pads are you using? (I think those look like silicon pads, but I wanted to ask.)

I must admit that I am not sold on the "sound of heatsinks," but whether it sounds any different or not, it definitely looks great! So I figured I would try and see for myself how it works/sounds since I have a stash of brass sitting around.

Thanks for sharing!
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Old 28th March 2006, 07:27 AM   #55
AudioFreak is offline AudioFreak  Australia
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Bronze heatsinks, split from advanced GainClone thread
Quote:
Originally posted by dfdye
Also, what thermal paste or pads are you using? (I think those look like silicon pads, but I wanted to ask.)
If memory serves correctly, Peter uses beryllium oxide (tsk! tsk!) and then coats it on both sides with silicon grease.
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Old 28th March 2006, 07:45 AM   #56
peranders is offline peranders  Sweden
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Bronze heatsinks, split from advanced GainClone thread
I have a good material for heat transfer. It's an insulator and conducts heat better than silver. Which material? I'll let you think about this for a while.

I don't know what Peter really thinks but bronze and brass are very nice materials to work with, much nicer than copper.
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Old 28th March 2006, 10:18 AM   #57
jimbo1968 is offline jimbo1968  United Kingdom
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I am wondering if the material is irrelevant but the chip temperature is the factor.

This would/could lead to a different conclusion on 'best' material for every amp/speaker configuration.

I note that many designs (including Peter's) look 'under heatsinked' to my novice eyes. Maybe the secret is keeping the chip at just the right (high) temperature.
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Old 28th March 2006, 10:33 AM   #58
karma is offline karma  Canada
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with all the holes im sure it works good. and if you look at the pic you can see the front faceplate and back has heatzinc grease so really the hole amp works as a heatzinc. just not the sides
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Old 28th March 2006, 10:49 AM   #59
jimbo1968 is offline jimbo1968  United Kingdom
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maybe all the components like a nice warm working environment.
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Old 28th March 2006, 10:53 AM   #60
Elso Kwak is offline Elso Kwak  Philippines
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Quote:
Originally posted by jimbo1968
maybe all the components like a nice warm working environment.
I for one like the climate in Greece or the Filipines much more than in UK.
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