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PostPosted: 02 Dec 2009, 22:46 
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Joined: 02 Dec 2009, 20:03
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Location: San Antonio, Texas
I got these heat sinks off Ebay and it got my creative juices going.

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PostPosted: 02 Dec 2009, 22:51 
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So I got some chips sampled from National Semiconductor Image

Then order and stuffed some of BrianGT's boards Image

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PostPosted: 02 Dec 2009, 22:52 
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I machined some aluminum and acrylic

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PostPosted: 02 Dec 2009, 22:53 
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And came up with a chip amp done my way

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PostPosted: 02 Dec 2009, 22:56 
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Here is the opposite view

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PostPosted: 03 Dec 2009, 01:10 
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Wow, that's looks cool. How many chips are you going to put in there, just the two?


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PostPosted: 03 Dec 2009, 08:20 
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Joined: 02 Sep 2008, 14:34
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Wardsweb, I really like the design and layout. What boards did you use? They look like Chipamp.com designs, but I don not recognize the PS board. Are you going to light the inside for additional visual effects? What are you going to use for a cover? Your designs and builds are fantastic. I have seen a lot of your work over at bottlehead.com, you inspire me with every post and pic.

Thank you, Alan

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Denon POA 2200 | Bottlehead Quickie with PJCCS | Integra CDC 3.1 | SOTA Sapphire-RG301-Grado Gold 1 | Soundwave Soliloquy Series I


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PostPosted: 03 Dec 2009, 09:11 
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The top and bottom plates are 1/4" aluminum. BrianGT sold these boards over on DIYaudio before his website did and then were replaced with the newer layout that you have seen.

Here is a pic taken when AudioFred was auditioning the amp at his house. He said the "Pig" tweak added some bottom end.

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PostPosted: 03 Dec 2009, 23:39 
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Nice 8-)

Alan,
That is the LM3875 kit (no zobel) and you can still get it: http://audiosector.com/lm3875.shtml

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PostPosted: 13 Feb 2010, 14:55 
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Joined: 17 Jan 2010, 13:50
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Location: Frederick, MD
Wardsweb,

I'm building an LM3875 Gainclone but can't find the 50v 160 VA CT Toroid. Will a 28v 200 VA (Antek AN-2228) work?

Thanks,

Luis


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