Heatsinks

[woody]

I spoted a couple of rather nice heatsinks over on ebay
item # 1752971465 . If I didn't have all the heatsinks
I need I sure would pick them up as the price is realy cheap.
Needless to say I have no economic conection with this item.


Regards, bob12345678 AKA Woody

 

[Jean]

It was sold the next day (buy now) , I missed it ! 🙁

 

[Jean]

I am thinking about this here, 1754594050 .

 

[cowanrg]

the guy has what seems to be an infinite amount of them... might be a little small for bigger projects, but you could always double up on them. and he cuts to length!

 

[dshortt9]

I bought from this guy and was pleased. He seems to be able to supply whatever his company is running at the moment. I bought some 10.8" wide stuff that would work well if long enough. He will cut to length.

Dave

 

[cowanrg]

what did you use the sink on?

you think they sinks are big enough (if doubled) for a high powered amp?

 

[dshortt9]

If doubled they could be used for an Aleph 3 or 5, using double widths for each rail. Mine are being used in a 150 wpc Aleph 2.

Dave

 

[nania]

dshortt9
What was the length of the heatsink purchased and what did you pay?

 

[km]

hi.

we have a reasonable qty. of heatsinks measuring 8" x 5" x 1.6" (200 x 120 x 40mm) with a 3/8" (10mm) baseplate.

we also have a qty. of cases, the heatsinks are sides of the case in the pic to give you an idea.

we ask $12 for each heatsink , qty. discounts possible.

 

[cowanrg]

what would costs be for shipping to the US? what are some specs on them c/w?

 

[km]

hi.

about shipping i dont really know , it will depend a lot of the qty. and the way of shipping (ups, parcel post,...)

the profile is somewhat like the fischer sk47 and the c/w is about 0.6 deg. celcius/w.

regards k madsen - cadaudio.dk

ps. with some interest we could arrange a combined shipment and some qty. discount as well.....

 

[JamesC]

HI,

I am starting my first amp project and going with the A75. I know a bit about electronics but am stupid about heat sinks. Anyone know if these heat sinks will be enough to soak the heat produced by the A75?

I was thinking of 4 of them could be combined to make a 10 x 16 x 1.6 heatsink for one side of case for a total of 8 blocks for two sides. Im using the can type mosfets so I would require attach a rail of some kind.

So what would be the cost of 8 sinks shipped to Canada?

BTW This is my first post. Hi Everybody!


James C.

😀 😀

 

[Peter Daniel]

I've built 3 pairs of A75 http://www.passdiy.com/gallery/a75-p7.htm. From what I see you would need about 12 of those heat sinks to run your amp optimally. Of course you can use 8, and if they aretoo hot, you can always reduce the bias.

 

[dshortt9]

nania-

I purchased 4 12" pieces for use as part of the chassis for some high power Alephs. $10 ea. I think if you used 4x24" pieces for each monoblock arranged like Pass Labs Alephs they would work for the 2. Or for a one chassis project the 3 or 5.

 

[JamesC]

I got some sinks for my A75.....

What do you think of these.

 

[jleaman]

i like them where did ya get them.. how much..

 

[JamesC]

I got them at R-theta in Toronto. They were not cheap... Each block 11"x10.5"x2.3' was just under 100.00 cnd each. I got 4 of them. I was searching for used sinks for a long time and could find anything suitable so I bought new.

 

[Coulomb]

They look really nice James, do you like the quality? The ones I am getting are Clear anodized. Was the finish good? By the way I noticed you scooped a whack load of caps from Active Surplus downtown.

Anthony