Heatsink Extrusion

Charles Hansen · 7th July 2004, 03:20 AM

Hello -

I have a vague memory of a top-line Japanese power amplifier from the 1980s that had a very unusual heatsink extrusion. Instead of having fins, it had hexagonal "cells". It may have been Luxman, but I'm not sure. A quick search of the web didn't turn anything up. Does anybody remember this amp? Any help would be appreciated.

Thanks,
Charles Hansen

jam · 7th July 2004, 03:25 AM

Pioneer A-90 and family.

jam · 7th July 2004, 03:31 AM

Charles,

I have one sitting on my bench. It's yours if you want it.

Charles Hansen · 7th July 2004, 06:17 AM

Hello Jam,

Thanks for the kind offer! That is the extrusion I was thinking of. It must be quite difficult to make, requiring a costly extrusion die.

Didn't someone else also use a similar extrusion? I still have a fuzzy memory of a silver amplifier that had these hexagonal extrusions externally placed on each side. But maybe I'm just getting old and senile...

Thanks,
Charles Hansen

woody · 7th July 2004, 06:41 AM

Charles,

Luxman did have an amp that had square cells. The major part
of the sink was ~ 5" wide 5" high and ~1" deep with 4 one inch
square cells.

Regards,
Woody

Charles Hansen · 7th July 2004, 03:43 PM

Thanks for the info Woody. I'm pretty sure that was the one I was thinking of. Do you remember the model number of that amp?

Frazzled · 7th July 2004, 04:33 PM

Quote:

Originally posted by jam
Charles,

I have one sitting on my bench. It's yours if you want it.

Strictly speaking of design esthetics, that pioneer is pretty sweet!

jam · 7th July 2004, 06:01 PM

You guys might mean the Luxman L-85V.

jam · 7th July 2004, 06:05 PM

Another shot.

jam · 7th July 2004, 06:07 PM

Last one.

7th July 2004, 03:20 AM	#1
Charles Hansen diyAudio Member Join Date: May 2003 Location: Colorado	Heatsink Extrusion Hello - I have a vague memory of a top-line Japanese power amplifier from the 1980s that had a very unusual heatsink extrusion. Instead of having fins, it had hexagonal "cells". It may have been Luxman, but I'm not sure. A quick search of the web didn't turn anything up. Does anybody remember this amp? Any help would be appreciated. Thanks, Charles Hansen

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7th July 2004, 03:25 AM	#2
jam diyAudio Member Join Date: May 2001 Location: Charlotte,NC,USA	Pioneer A-90 and family.

7th July 2004, 06:17 AM	#4
Charles Hansen diyAudio Member Join Date: May 2003 Location: Colorado	Hello Jam, Thanks for the kind offer! That is the extrusion I was thinking of. It must be quite difficult to make, requiring a costly extrusion die. Didn't someone else also use a similar extrusion? I still have a fuzzy memory of a silver amplifier that had these hexagonal extrusions externally placed on each side. But maybe I'm just getting old and senile... Thanks, Charles Hansen

7th July 2004, 06:41 AM	#5
woody diyAudio Member Join Date: Jan 2002 Location: Tyrone Ga. U.S.A.	Charles, Luxman did have an amp that had square cells. The major part of the sink was ~ 5" wide 5" high and ~1" deep with 4 one inch square cells. Regards, Woody

7th July 2004, 03:43 PM	#6
Charles Hansen diyAudio Member Join Date: May 2003 Location: Colorado	Thanks for the info Woody. I'm pretty sure that was the one I was thinking of. Do you remember the model number of that amp?

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