47lb Heatsink for $40usd

[seangoesbonk]

I just thought you Class A freaks might like to know about this:
http://www.meci.com/
Look in the "Heatsink" section. (duh!)
A 18"w x 14.5"d x 5.25" that weighs 47lbs!!! $39.95usd!!!
Meci number 310-1593.
Don't say I never did anything for you... 😀

 

[Peter Daniel]

Sorry to disapoint you but they don't look 5.25" high.😉

 

[Variac]

AND check out 310-0282

24.75" long by 7" x 3"
VERY nice

The picture shows the shorter one that is listed below
No more excuses!- make those Alephs!!!

4 would cost $50 shipped to California 🙁

 

[grataku]

Peter,
I have already taken the liberty of guesstimating the ratios from measuring the computer screen with a ruler. I come up with pretty close ratio for lenght and width. I attributed to error to the weird prospective. As far as the height I came up with 3".
I guess if they re-sized the picture in a non uniform fashion (very plausible) it all goes up in smoke. I will just have to wait and see. I am hopeful because of the 47 lb weight.

 

[BrianGT]

If you look at the other heatsinks on the site, they use the same picture for two heatsinks of different sizes. They probably just pick a picture similar to the type of heatsink and use it for all heatsinks of that type. If anyone orders some of these heatsinks, please post pictures. I am interested in these also.

Thanks for the heads up,

--
Brian

 

[BrianGT]

I called MECI, and they are out of stock for the big heatsink now.

--
Brian

 

[fcel]

MECI Part Number: 310-1593

I think we finally has the correct picture for the 47 lbs heatsink. http://www.meci.com/default.asp?mode=getitems&category=39
We might need some creativity to figure out where or how to mount the transistors!

 

[fcel]

On second glance, it may still not be the right picture. Right below part # 310-1593, there is a different part # with the same picture next to it and I still don't see the 5.25" fins.

 

[Peter Daniel]

Re: MECI Part Number: 310-1593

We might need some creativity to figure out where or how to mount the transistors!

It's very similar to the one I used in my Zen amp: http://www.diyaudio.com/forums/showthread.php?s=&threadid=4561&pagenumber=1

 

[fcel]

For the above, I'm referring to the 47 lbs heatsink ...

Your heatsink looks like part # 310-0281 which does looks like what you use for your "little" Zen. Since we're on this subject, how tall is your Zen heatsink? Is it also 7" wide & 3" fins? You got it anodized?

 

[Peter Daniel]

I didn't see the other one. If you talking about this ones for $39 it was a steal. No wonder Grataku went to Sin Bin for it.😉 The base plate is probably on the bottom and this is were you mount the devices. With 3 fans you could probably build one channel of Aleph 1.2 on ea. sink. If I got the info earlier I would probably buy 10 of them.

Mine were about the size you mentioned and I bought them black anodized CAD10 ea. Not bad either.😉

 

[fcel]

Keep in mind that this was not the picture that Grataku saw when he ordered it.
Also, you can live with fans on the heatsink?

 

[Peter Daniel]

I think that when designed properly (and cleverly damped), run at half speed, the fans can be an interesting alternative. Cello amps which were really expensive and higly regarded were using fans.

It also depends how loud and what kind of music you listen to. I think I could live with them. Sometimes the size does matter too (I'm talking about the amps here).😉

 

[glyphin]

I bought four of these puppies and while they are truly massive, they actually weighed 33 lbs as opposed to 47lbs. The picture of the silver heatsink with three circle cutouts is accurate.

I'm going to try to build both channels of Aleph 30's per heatsink. Think it'll be sufficient?