Heatsinks

[analogair]

Hi Guys.
I'm wondering if anyone know where to buy big, cheap, efficient heatsinks for ex. Aleph-X

Preferable, in Denmark, due to cost of freight.

[Llafriel]

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.

[analogair]

How much heat do you dissipate in your heatsinks and how hot does they run and at what room temp.

I would sure like to know a bit about your experience on the heatsinks, which amp and wattage....

PS: Perhaps you could post some pictures or something.
Feel free to email me

[Nisbeth]

The words "cheap" and "Denmark" are rarely seen together....


/U.

[analogair]

You couldn't be more right.

I have an offer from Magura, some second hand sinks, but they will need some milling before i can use them.

[Llafriel]

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/pa...nstruction.htm
He's using one sink pr. channel and the temperature is 70C. The sink is MF30-2F.

[steenoe]

I have an offer from Magura

If its the same as I bought from him, mine didn't need milling. But lots of work to finish the chassis. Does they look like these?
If you go for the Conrads, simply buy the biggest you can get, and if you consider a high power version A-X, get enough for monoblocks

Steen

[audiotux]

my goodness , are these little things
for heating the whole house ?
there must be cold in the nord of europe !

Greetings from Germany


Jürgen

[analogair]

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 ?

[steenoe]

Are your Amp's on the pics Aleph-X's or other.

Yes, I am building 100 watts A-X's.

How much are you able to drive with those baby's and how much do they dissipate ?

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.

Do you have some close up pictures and some pictures from inside the amp's ?

The amps are not quite finished yet. Here is a pic of the chassis, in the making. Those sinks are just cool

Did you get my email about some other pcb's ?

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

there must be cold in the nord of europe !

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