I ordered mine from www.conradheatsinks.com. Total price for 4 double MF30-2F was about 1600NOK(freight included). Cheaper than anything that I found in Norway or Scandinavia.
I'll be using them for an Aleph 5, two pr. channel. The Aleph 5 dissipates 150W pr. channel. Mine isn't finished yet, but you could look this page for some measurments.
http://www.users.on.net/~mefinnis/passlabs/aleph5_construction.htm
He's using one sink pr. channel and the temperature is 70C. The sink is MF30-2F.
http://www.users.on.net/~mefinnis/passlabs/aleph5_construction.htm
He's using one sink pr. channel and the temperature is 70C. The sink is MF30-2F.
Steenoe
Jup, that's the ones
He's trying to get 12 of them for me.
Are your Amp's on the pics Aleph-X's or other.
How much are you able to drive with those baby's and how much do they dissipate ?
Do you have some close up pictures and some pictures from inside the amp's ?
PS: Did you get my email about some other pcb's ?
Jup, that's the ones
He's trying to get 12 of them for me.
Are your Amp's on the pics Aleph-X's or other.
How much are you able to drive with those baby's and how much do they dissipate ?
Do you have some close up pictures and some pictures from inside the amp's ?
PS: Did you get my email about some other pcb's ?
Yes, I am building 100 watts A-X's.
I dont know the excact dissipation figure for those sinks. My guess is that a monoblock like those on the pic, can dissipate a bit more than the 300 watts per channel my A-X's are gonna dissipate. Those sinks are pretty good, with fins on both sides of the body, which is thick.
The amps are not quite finished yet. Here is a pic of the chassis, in the making. Those sinks are just cool
No, but I dont get any of those "Reply to post" mails from DIYaudio at the moment either. Maybe its the mailsystem here?
I will mail you instead
Its not too cold yet, Jurgen
I hope to get them running before winter sets in for real. They might be able to heat up the livingroom Steen
Attachments
I will post one more pic for you, since these heatsinks are not excactly the easiest ones to construct a chassis from. Here is how I have bolted it together, seen from inside. I had bushings machined for the bolt holes in the sinks, but I dont think, thats really necessary. If you need more pics or other info, let me know
Steen
Steen
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I'm using the www.conradheatsinks.com model MF350-151.5
I bought four of them and the total shipping cost was only $15USD!!!
Consider the larger heatsinks with a thicker base. Corrected for room operating temperature the thermal rating was .295 c/w.
I took the spec value of .21c/w and multiplied it by 1.4 to get .295c/w.
Their flanged models have a slightly thinner base and slightly greater thermal rating.
Consider the larger models at 350mm rather than 300mm.
Good luck.
-David
I bought four of them and the total shipping cost was only $15USD!!!
Consider the larger heatsinks with a thicker base. Corrected for room operating temperature the thermal rating was .295 c/w.
I took the spec value of .21c/w and multiplied it by 1.4 to get .295c/w.
Their flanged models have a slightly thinner base and slightly greater thermal rating.
Consider the larger models at 350mm rather than 300mm.
Good luck.
-David
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