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Chip Amps Amplifiers based on integrated circuits

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Old 22nd July 2008, 05:25 PM   #701
crt is offline crt  Indonesia
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Quote:
Originally posted by Bluto
CRT -

Whose design? Very nice ... simple.

Bluto
the schematic, i use standar schmatic from LM3886 datasheet (+ input caps).
for PCB layout, i made by myself.
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Old 24th July 2008, 09:59 PM   #702
A Sanchez is offline A Sanchez  United States
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Default My LM3886

Hi, this is my first ever audio project. It works quite well and there are not mayor issues. Thanks to all the members that helped me through the process.
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Old 24th July 2008, 10:01 PM   #703
A Sanchez is offline A Sanchez  United States
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another
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Old 24th July 2008, 10:03 PM   #704
A Sanchez is offline A Sanchez  United States
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more
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Old 24th July 2008, 10:04 PM   #705
A Sanchez is offline A Sanchez  United States
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and the PSU
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Old 24th July 2008, 10:48 PM   #706
FastEddy is offline FastEddy  United States
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A Sanchez: very cool indeed.

" ... Looks more like very hot, a heatsink faux pas. ..."

Yes, and not well vented, either ... But, that's what DIY is all about: try, test, try again ... It is still a good, "cool" concept IMOP ...
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Old 24th July 2008, 10:54 PM   #707
jacco vermeulen is offline jacco vermeulen  Netherlands
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Looks more like very hot, a heatsink faux pas.
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Old 25th July 2008, 07:13 AM   #708
A Sanchez is offline A Sanchez  United States
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Hi,

The photos were taken before I made a few dozen perforations on the top, sides nd back of the acrylic cover. The other day I had the amp on for few hours and while one of the heathsinks got a bit hot, both chips were just warm but not hot at all.

Antonio
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Old 25th July 2008, 11:56 AM   #709
wuffer is offline wuffer  Denmark
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My chipamp.
Lm4780 kit from audiosector
1 pcb used for 1 stereo amp with 3 input and noble pot for volume
Transformer is 2x24,9vac around 190va

It sounds so good
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Old 25th July 2008, 11:58 AM   #710
wuffer is offline wuffer  Denmark
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And inside.
Just need to change the input cabels to the amp and insert fuse then its done
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