Heatsinks for Power Amps

[anilva]

heres a heatsink that arrived today for an F5 Turbo amp cab build
its a monstrous 6feet long extrusion
absolute killer

What are the dimensions apart from the length? I am keen to buy a 2' length.

Thanks.

 

[magma]

anil
here are the outer ones
refer type 2 heatsink
http://www.hifivision.com/diy/12932-heatsinks-power-amps.html#post179121

note the base is not entirely flat
the central part protrudes by 0.8mm
so if you are mounting side by side and need the base to be in a plane youll have to mill out

or the other option is using a cuppor bus bar and mount the chips onto that

 

[magma]

http://www.hifivision.com/diy/12932-heatsinks-power-amps-2.html#post340899

the above heatsink has generated some interest and i now have a couple PM's

Please note
when i buy sinks i buy the entire extruded length 6 feet or a bit more
hence i am in no position to offer anyone retail qtys

currently i have sourced the above sink for a pass labs F5 turbo amp build
Hence this is the only sink (other than the type 1 - which i can probably source) i can offer on group buy currently

as i have stated on the onset of this thread
Once again i re-iterate
i have no commercial intrests in sinks, im not a dealer nor a manufacturer just a fortunate guy who has access to customised extrusion owing to my regular work
I am doing this only for members and for sinks that are hard to get as help to all WITH the permission of the extruder ( since these may be patented sinks which may or may not be for retail sale in the market)

 

[Hari Iyer]

http://www.hifivision.com/diy/12932-heatsinks-power-amps-2.html#post340899

the above heatsink has generated some interest and i now have a couple PM's

Please note
when i buy sinks i buy the entire extruded length 6 feet or a bit more
hence i am in no position to offer anyone retail qtys

currently i have sourced the above sink for a pass labs F5 turbo amp build
Hence this is the only sink (other than the type 1 - which i can probably source) i can offer on group buy currently

as i have stated on the onset of this thread
Once again i re-iterate
i have no commercial intrests in sinks, im not a dealer nor a manufacturer just a fortunate guy who has access to customised extrusion owing to my regular work
I am doing this only for members and for sinks that are hard to get as help to all WITH the permission of the extruder ( since these may be patented sinks which may or may not be for retail sale in the market)

How about using a liquid coolant in the heat sink and allowing the liquid to vaporise using a heat sink flange and the vapoured liquid to get sucked in to become liquid using thermodynamic principles. Sony Amps (Model TA-AX44 - year 1985) use to use these heatsinks to cool their hybrid IC - STK series (i think STK-2240). This way the heatsink size can be very small and very effective and very light weight too. Also this offers more better heat transfer than the normal alunimum extrude ones. I have this amplifier and will post photographs later.

Cheers,
Hari.

 

[magma]

heres a monstrosity of a sink

 

[captrajesh]

Truly looks monsterous. The pics on page 1 are not loading. Hence the query. What are the dimensions, the fin depth, the thickness of the base plate and the weight per meter?

 

[magma]

capt

heres the flower sink




other details i need to pull up in office

 

[diesel engine]

heres a monstrosity of a sink

What is the dimensions of this heat sink?

 

[Thad E Ginathom]

My Ocean Audio Bravo could do with something like that! :lol:

 

[magma]

I think this sink is in fact the n56

8.5 inches wide and 3 inch high with a 17mm thick base
Weighs
23.5 kg per metre