300mm Heatsinks for amplifier

[baswamin]

Hello all,

Does anyone have pointers to 300mm heatsinks that can be used in power amplifier? I see that on diyaudio store, typical widths of heatsinks is 300mm and fin height is 40mm (finned). Getting it from US though is very expensive.

I usually procure heatsinks from Perfect metals in Bangalore but they have at best 250-275mm width. They have other options around 200mm but larger fins. I cannot find 300mm heatsinks with 40mm fins. Can anyone provide some inputs for the same? TIA

Thanks

 

[Aniket]

Hi,

heatsinks I used in my amps( here: http://www.hifivision.com/diy/49469-250w-250w-power-amp-build-5.html#post620747 ) are 300mm in length, height is 100~110mm and fin length is 40~50mm.
these are available locally here in Delhi at decent prices.

Regards,
Aniket

 

[kpsthakur]

Hi,

heatsinks I used in my amps( here: http://www.hifivision.com/diy/49469-250w-250w-power-amp-build-5.html#post620747 ) are 300mm in length, height is 100~110mm and fin length is 40~50mm.
these are available locally here in Delhi at decent prices.

Regards,
Aniket

Hi Aniket, please help me with an address in NCR...I am struggling like anything....I have an F5 build on the way...and pretty small heatsinks


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[kpsthakur]

Hello all,



Does anyone have pointers to 300mm heatsinks that can be used in power amplifier? I see that on diyaudio store, typical widths of heatsinks is 300mm and fin height is 40mm (finned). Getting it from US though is very expensive.



I usually procure heatsinks from Perfect metals in Bangalore but they have at best 250-275mm width. They have other options around 200mm but larger fins. I cannot find 300mm heatsinks with 40mm fins. Can anyone provide some inputs for the same? TIA



Thanks

Hi Baswamin, does Perfect metals bangalore entertain individual orders for as low as 2 pieces???any contact person you can refer please


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[Aniket]

Hi Aniket, please help me with an address in NCR...I am struggling like anything....I have an F5 build on the way...and pretty small heatsinks


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Hi,

you can contact choudhary electronics on khandsa road in gurgaon, or you can travel to lajpat rai market in Delhi for better options.

you can contact me for clarity. 9999143877

Regards,
Aniket

 

[kpsthakur]

Both of them works well, will speak to you tomorrow...thanks


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[adas]

any heatsink dealers in mumbai ... for small quantities

 

[baswamin]

Yes they do handle smaller number of pieces. I dont have contact number but just call to their number that they have provided on their website.

Thanks

Hi Baswamin, does Perfect metals bangalore entertain individual orders for as low as 2 pieces???any contact person you can refer please


Sent from my iPhone using Tapatalk Pro

 

[HormusPeston]

I remember an old elektor amplifier that used heatsinks as part of the case. Anyone remember which one? I think it was a massive two-tier job with Sanken transistors. The voltage and current amplifiers had separate pcbs which were stacked. Anyone remember that design?

 

[magma]

Hi,

heatsinks I used in my amps( here: http://www.hifivision.com/diy/49469-250w-250w-power-amp-build-5.html#post620747 ) are 300mm in length, height is 100~110mm and fin length is 40~50mm.
these are available locally here in Delhi at decent prices.

Regards,
Aniket

please explain how your heatsink is 300mm width ( profile )

your sink s only 100mm- 110 mm width profile sir
LENGTH that you have cut is 300mm !!!
(its another story that your sink placement is incorrect
if you want the fins horizontal you require tunnel cooling )

you can probably easily achieve what you are doing with a sink half this size put the correct way up ( i.e vertical fin )