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Old 11th October 2008, 08:25 PM   #1
zymurgn is offline zymurgn  United States
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Default My chipamp

Hi guys, I just wanted to share my project with you. I originally posted this as a reply to another thread, but I thought it would be more visible as its own post.

I used the 1875 kit from Chipamp.com

I hope you guys like it!

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Old 12th October 2008, 06:23 AM   #2
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Nice! You can't get much simpler than that.

Are you only using one of the heatsinks?
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Old 12th October 2008, 03:04 PM   #3
bego2 is offline bego2  Croatia
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niccceee...very nice box, where did you get it? how much?

nice work...you have two heatsinks, why use one ?
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Old 13th October 2008, 09:09 AM   #4
zymurgn is offline zymurgn  United States
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I like the design of both ICs on the same heatsink, everything fits better. Aside from that, it is large enough be more than enough to dissipate the heat under full load. In other versions I might change it up though.
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Old 13th October 2008, 02:04 PM   #5
aurche is offline aurche  Bulgaria
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Don't you see? The whole box is a heatsink.
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Old 13th October 2008, 04:00 PM   #6
zymurgn is offline zymurgn  United States
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Exactly!
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Old 13th October 2008, 05:03 PM   #7
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Quote:
Originally posted by zymurgn
I like the design of both ICs on the same heatsink, everything fits better. Aside from that, it is large enough be more than enough to dissipate the heat under full load. In other versions I might change it up though.
There's nothing wrong with that. My dual LM1875 amp (that I built about 15 years ago) has both chips on a 3"x1"x1" heatsink. I don't often drive it that hard, but when I do it doesn't get too hot. With moderate listening levels it is barely warm to the touch.
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Old 13th October 2008, 05:30 PM   #8
vonfilm is offline vonfilm  United States
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I am in the process of building this kit. May I ask what transformer you used?
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Old 14th October 2008, 02:55 PM   #9
zymurgn is offline zymurgn  United States
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The toroid is an Avel Lindburg 160VA
Model # Y236502

Good Luck with the project!
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Old 17th October 2008, 05:45 PM   #10
vonfilm is offline vonfilm  United States
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I am planning to use the XFM-D0012 toroidal transformer 21.5 Volts at 2.7 amps from Apex Junior for the LM1875 Gainclone Kit from BrianGT. On one side it has red,white,blue and black wires. On the other side it has orange, red ,brown and black wires.

Can someone please advise me the correct way to wire these to the kits power supply PCB and the mains connection?
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