Heatsink for fanless Class A power amp

[d888sp4]

Hi,
If anyone is interested, I have lasts 4 heatsinks I made cut to custom size to build a Krell ksa-50 dual mono fanless class A power amp (joined together with aluminum bars of square section forming the sides of the chassis.)

Heat sink with a very low thermal resistance (Rth 0.45 °C/W), suitable also for TO-3 package.
Single unit measure: 178mm(L) x 200mm(H) x 80mm(D).

90 Euro for all 4 pcs + shipping costs.

 

[AudioSan]

and why is this ad in the pass labs forum, and not in the commercial sector?

 

[tinitus]

moved to swap meet


moderation

 

[dungdochi1978]

Hi,
If anyone is interested, I have lasts 4 heatsinks I made cut to custom size to build a Krell ksa-50 dual mono fanless class A power amp (joined together with aluminum bars of square section forming the sides of the chassis.)

Heat sink with a very low thermal resistance (Rth 0.45 °C/W), suitable also for TO-3 package.
Single unit measure: 178mm(L) x 200mm(H) x 80mm(D).

90 Euro for all 4 pcs + shipping costs.

businesse ?saller man...? ...put it in garbage ok

 

[sibbeli]

i want to buy it!
i dont have possibikity to transfer today, but in 3-4 days. What will the shipping to sweden be for it?

I am building a F5T V.2 so they will suit nicely.

how much does the krell ksa 50 dual mono dissipate? I wonder as i might use the them to two amps.. maybe.
I have forgotten how to calculate dissipation of devices as i have been taking a break from all diy audio stuff...

i shall read on about thst but ther size ans thermal capability seems to suit my F5T nicely.

So, please let me buy them from you when christmas is over?

 

[d888sp4]

I explain...

and why is this ad in the pass labs forum, and not in the commercial sector?

I am not a dealer, but simply as a DIYer like all you.
Personally, I really struggled to find the right solution for the heat sink that was appropriate to build a final in class A fanless.
So I think these items are of particular interest for those who own the Class A power amp, exactly like those of Nelson Pass.



Alberto.

 

[sibbeli]

please answer my post?

many people who sells big heatsinks here so the one that is best price and fastest to respond will get them sold.

my chassis will be 42*35*20-25 (w*d*h)
manufactured by me in aluminum. height depends on the sinks ofc.

 

[Doppler9000]

PM sent.

 

[d888sp4]

i want to buy it!
i dont have possibikity to transfer today, but in 3-4 days. What will the shipping to sweden be for it?

I am building a F5T V.2 so they will suit nicely.

how much does the krell ksa 50 dual mono dissipate? I wonder as i might use the them to two amps.. maybe.
I have forgotten how to calculate dissipation of devices as i have been taking a break from all diy audio stuff...

i shall read on about thst but ther size ans thermal capability seems to suit my F5T nicely.

So, please let me buy them from you when christmas is over?

For those interested, I posted the ad on eBay:

4 x Dissipatore alluminio Rth 0.45°C/W per finali di potenza | eBay

For payment I can wait a few days without any problems ...

Have a nice Christmas.

 

[d888sp4]

This is the right link on eBay action:

4 x Dissipatore alluminio Rth 0.45°C/W per finali di potenza | eBay

 

[Crom]

Links don't work.

 

[d888sp4]

Sorry, I do not understand why when I copy the link in the forum does not work, while in browser everything is ok...
However, please see the item for sale on my account:
d888sp44 su eBay

Carlo Alberto.

 

[d888sp4]

My eBay account is: d888sp44
Alternatively you can search the items with "4 x dissipatore".