6 Channel LM3886

Jean · 16th August 2005, 04:41 AM

Hello,

Here is my current progress with a 6 channel lm3886 based amplifier. I am thinking about mounting all 6 LM's down the center to a thick copper or aluminum bar. I will most likely use a two tier method, mounting a single transformer under the boards.

Suggestions ?

karma · 16th August 2005, 05:26 AM

copper would be nice

G4ME · 16th August 2005, 08:01 PM

what size toroid are you looking at?

personally i would put them on the sides, as that gets more air convection, but if you go big enough on the center bar i am sure you will be fine.

Leolabs · 18th August 2005, 03:20 PM

Try to look inside of a MBL or Plinius intergrated amplifier.

Richard.C · 19th August 2005, 06:37 AM

you are too strong!!
i only want to kown....how to paste a picture in the post?

renfrow · 20th August 2005, 04:54 AM

You might also consider a heat sink like this one found at http://www.apexjr.com/new.htm, just over halfway down the page. It's predrilled for a boatload of TO-3's, but, you could drill your own holes...

Tom.

16th August 2005, 04:41 AM	#1
Jean diyAudio Member Join Date: Mar 2002 Location: Sacramento, CA	6 Channel LM3886 Hello, Here is my current progress with a 6 channel lm3886 based amplifier. I am thinking about mounting all 6 LM's down the center to a thick copper or aluminum bar. I will most likely use a two tier method, mounting a single transformer under the boards. Suggestions ? __________________ left lane is for passing, slower traffic keep right please.

16th August 2005, 08:01 PM	#3
G4ME diyAudio Member Join Date: Jun 2003 Location: Location: Location	what size toroid are you looking at? personally i would put them on the sides, as that gets more air convection, but if you go big enough on the center bar i am sure you will be fine. __________________ Two little mice fell in a bucket of cream. The first mouse quickly gave up and drowned. The second mouse, wouldn't quit. He struggled so hard that eventually he churned that cream into butter and crawled out.

20th August 2005, 04:54 AM	#6
renfrow diyAudio Member Join Date: May 2005 Location: Salt Lake City, Utah, USA	You might also consider a heat sink like this one found at http://www.apexjr.com/new.htm, just over halfway down the page. It's predrilled for a boatload of TO-3's, but, you could drill your own holes... Tom. __________________ Now, we can do this the hard way, or... well, actually there's just the hard way. -- Buffy Summers (Buffy the Vampire Slayer)

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16th August 2005, 05:26 AM	#2
karma diyAudio Member Join Date: Feb 2003 Location: hamilton,ontario	copper would be nice

18th August 2005, 03:20 PM	#4
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	Try to look inside of a MBL or Plinius intergrated amplifier.

19th August 2005, 06:37 AM	#5
Richard.C diyAudio Member Join Date: Aug 2004 Location: China	you are too strong!! i only want to kown....how to paste a picture in the post?

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