Need DigiKey PN for 9610 heatinks for Aleph 2 boards - diyAudio
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Old 4th January 2004, 09:21 PM   #1
Jean is offline Jean  United States
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Default Need DigiKey PN for 9610 heatinks for Aleph 2 boards

I just read many threads and couldn't find what I needed. I am looking for heatsinks that I can order from Digikey (thats where I am ordering my irfp9610s and zeners from) that will fit BrianGT aleph 2 boards.


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Old 4th January 2004, 09:35 PM   #2
Jean is offline Jean  United States
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Will vertical mount 294-1034-nd or 294-1024-nd fit ? Trying to locate something that will fit right in on the board w/o getting in the way of other components.
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Old 4th January 2004, 11:35 PM   #3
BDP is offline BDP  United States
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I believe the digi-key number that would work is HS107. My voltage rails were -\+ 33 volts. As you can see the differential pair didnt need heatsinks.

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Old 4th January 2004, 11:48 PM   #4
moe29 is offline moe29  United States
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i don't use heatsinks for the 9610's on my Aleph 2 at all...

guess it just depends what you are comfortable with.
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Old 4th January 2004, 11:50 PM   #5
jwb is offline jwb  United States
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None of those transistors need heatsinks but you may get better performance if the diff pair is thermally coupled on the same heatsink.
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Old 5th January 2004, 12:08 AM   #6
Jean is offline Jean  United States
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I went ahead and ordered 20+ small heatsinks from digikey, maybe a few will match and fit good on the board.

Thanks!
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Old 5th January 2004, 02:55 AM   #7
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I used a peice of L extrusion to connect diff pair. Small whatever for ccs from surplus shop

The chokes started to stink. They were replaced with big 2 ohm resisters.
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Old 5th January 2004, 03:19 AM   #8
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HI! Brian I see that you did a good job doing the point to point connection of the CCS and the output FETS. How did you connect the CCS and the output FETS ( Source of the CCS to the Drain of the output FETS ). Thank you for your'e input .
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Old 5th January 2004, 03:37 AM   #9
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They connect on the board through the 12 ga yellow wires.
Here's a better pic of point to point with the turret terminals Mark Gulbranson ( I hope i didn't butcher his last name too badly) used on his Aleph 2


OOps, That was the wrong pic. Here I'm swapping blown fets. They are sooooo sensitive to static without the rest of the circiut.
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Old 5th January 2004, 04:16 AM   #10
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H! Brain is you're driver board from Dale's group buy, if so please help me understand. Refering to Kristijan site (http://web.vip.hr/pcb-design.vip/) there are six FET output and CCS , The CCS FET ( source is connected to a one ohm resistor )to the output FET( Drain). These connection is only connected by that yellow wire am i right?
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