poobah said:Why not just say that bronze is cheaper and easier to machine? Leave all the sonic nonsense out?
Where I live, bronze its at least double the copper cost. Machining is not an issue here.
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Joined 2004
Peter Daniel said:
What I find depressing, is that soon, along with changing forum logo, the forum motto will be also changed and we will be looking at:
diyAudio
place where fanatics don't post anymore
What I find depresing is that some folks really need to know why, before they actually decide to try something.
Bravo!
Dang nabbit! I realized I didn't say it right. The thermal flux does decrease, but the thermal gradient does increase in response to a thermal pulse. Not that anyone actually cares, but I hate leaving my mistakes uncorrected. Less embarrasing than having someone else correct me later!
As much as I hate to say it, brass does have a scientifically documented benefit over copper for vibration and resonance control. Lubricity is only one of several reasons whey bronze is a favoured material for large scale industrial bearings.
Cheers, Terry
As much as I hate to say it, brass does have a scientifically documented benefit over copper for vibration and resonance control. Lubricity is only one of several reasons whey bronze is a favoured material for large scale industrial bearings.
Cheers, Terry
Peter Daniel said:
What I find depresing is that some folks really need to know why, before they actually decide to try something.
Yes, It's DO-It-Yourself. But different peeps not only will DO things different, also their *approach* to a certain subject is very individual. *Each* of these approaches is valid. Period.
With condemning others for doing analysis and gaining a better understanding, probably carefully sorting out choices before even touching the materials, you, Peter, might leave a very ignorant and narrowminded impression.
That's what I would find depressing, someone telling me how and if to think...
regards
i saw this movie, at a theater, after, i was so depressed,
the next day,bought a-lot 'o Cr-4p at numerus thrift stores,
and some caps' n' perf board just to get feellin better.
http://www.imdb.com/title/tt0065571/
````````````````````````````````````
All Our Products Now Come Infused With 'Cr-4p'
the next day,bought a-lot 'o Cr-4p at numerus thrift stores,
and some caps' n' perf board just to get feellin better.
http://www.imdb.com/title/tt0065571/
````````````````````````````````````
All Our Products Now Come Infused With 'Cr-4p'
Choices
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?
Upupa Epops said: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?
Short answer: No.tomtt said:would granite make a usable heatsink?
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!
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!
dfdye said: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.
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.
I don't know what Peter really thinks but bronze and brass are very nice materials to work with, much nicer than copper.
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.
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.
jimbo1968 said: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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