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Old 18th August 2011, 05:48 PM   #1
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Default AV400

I intend to construct two channels of of the popular AV400 MOSFET amplifier. I have redesigned the PCB which was previously posted by some viewer of DIY audio site. This PCB accommodates large reservoir capacitors. The original design is not mine. Can some one debug the PCB from the schematic.
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Old 19th August 2011, 03:41 AM   #2
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Sorry the PCB image file was left inadvertantly.
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File Type: pdf AV400.pdf (57.3 KB, 362 views)
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Old 3rd September 2011, 07:02 PM   #3
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Has anyone assembled AV400 Amplifier. If yes, what is the performance, distortion level etc.
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Old 3rd September 2011, 07:06 PM   #4
NMOS is offline NMOS  Germany
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Quote:
Originally Posted by katiyar View Post
Has anyone assembled AV400 Amplifier. If yes, what is the performance, distortion level etc.
I prefer to use QUASI NMOS300/500

its proved Design hundreds pcs. are build


you can find ..... power amp under development
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Old 3rd September 2011, 07:13 PM   #5
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Thanks for advise.
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Old 3rd September 2011, 10:10 PM   #6
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Quote:
Originally Posted by katiyar View Post
Sorry the PCB image file was left inadvertantly.
That's why I use net lists. If the schematic is correct, the PCB connections will be too. BTW, where is the schematic to compare to?

G
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Old 6th September 2011, 02:20 AM   #7
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Revised PCB layout with Carbon ! watt power resistors and Zobel network.
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File Type: pdf AV400 R1.pdf (70.8 KB, 212 views)
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Old 1st October 2011, 05:25 PM   #8
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Default Mistakes corrected

Mistakes were found in previous layout which have been corrected. Interested readers may check the layout with AV400 Schematic.
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File Type: pdf AV400 R1.pdf (73.2 KB, 211 views)
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Old 16th October 2011, 07:43 AM   #9
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Default AV400 PCB ETCHED

I have just now etched pcb for AV400. More pictures later
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File Type: jpg DSC03048.jpg (492.1 KB, 361 views)
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Old 16th October 2011, 01:12 PM   #10
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PCB is very good. But it should be better if made with fiberglass board instead of phenolite.
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