Need DigiKey PN for 9610 heatinks for Aleph 2 boards

Jean · 4th January 2004, 09:21 PM

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.

Thanks !

Jean · 4th January 2004, 09:35 PM

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.

BDP · 4th January 2004, 11:35 PM

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.

BDP

moe29 · 4th January 2004, 11:48 PM

i don't use heatsinks for the 9610's on my Aleph 2 at all...

guess it just depends what you are comfortable with.

jwb · 4th January 2004, 11:50 PM

None of those transistors need heatsinks but you may get better performance if the diff pair is thermally coupled on the same heatsink.

Jean · 5th January 2004, 12:08 AM

I went ahead and ordered 20+ small heatsinks from digikey, maybe a few will match and fit good on the board.

Thanks!

Brian Donaldson · 5th January 2004, 02:55 AM

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.

nbaula · 5th January 2004, 03:19 AM

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 .

Brian Donaldson · 5th January 2004, 03:37 AM

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.

nbaula · 5th January 2004, 04:16 AM

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?

4th January 2004, 09:21 PM	#1
Jean diyAudio Member Join Date: Mar 2002 Location: Sacramento, CA	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. Thanks ! __________________ left lane is for passing, slower traffic keep right please.

4th January 2004, 09:35 PM	#2
Jean diyAudio Member Join Date: Mar 2002 Location: Sacramento, CA	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. __________________ left lane is for passing, slower traffic keep right please.

5th January 2004, 12:08 AM	#6
Jean diyAudio Member Join Date: Mar 2002 Location: Sacramento, CA	I went ahead and ordered 20+ small heatsinks from digikey, maybe a few will match and fit good on the board. Thanks! __________________ left lane is for passing, slower traffic keep right please.

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4th January 2004, 11:48 PM	#4
moe29 diyAudio Member Join Date: Dec 2002 Location: Florida	i don't use heatsinks for the 9610's on my Aleph 2 at all... guess it just depends what you are comfortable with.

4th January 2004, 11:50 PM	#5
jwb diyAudio Member Join Date: Mar 2002 Location: San Francisco, USA	None of those transistors need heatsinks but you may get better performance if the diff pair is thermally coupled on the same heatsink.

5th January 2004, 03:19 AM	#8
nbaula diyAudio Member Join Date: Mar 2002 Location: Daly City California USA	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 .

5th January 2004, 04:16 AM	#10
nbaula diyAudio Member Join Date: Mar 2002 Location: Daly City California USA	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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