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Chip Amps Amplifiers based on integrated circuits

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Old 12th March 2012, 04:14 PM   #11
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Dear kulddepJee,...nice to hear that u still paly with Chip amps..btw whci program do u use
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Old 12th March 2012, 05:10 PM   #12
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Hello sivan ji... thanks for the comments ... i am using eagle now...
eagle pcb software. its quite easy to use.
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Old 30th March 2012, 09:18 AM   #13
neeraj is offline neeraj  India
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Good job Bro!!
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Old 30th March 2012, 10:48 AM   #14
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hoping to receive first supply of PCBs today
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Old 30th March 2012, 10:50 AM   #15
neeraj is offline neeraj  India
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By the way could you please specify Pitch of Power Capacitor. Snap in type will work ??
Please Post snap of finished PCB .
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Old 30th March 2012, 11:02 AM   #16
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pitch is 5 mm to 7.5 mm, both can come. i'll post pic as soon it comes.
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Old 30th March 2012, 10:50 PM   #17
jaycee is offline jaycee  United Kingdom
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Do you want the mute function? If not, just wire the mute pin to -V via 22Kohms. No need for the extra parts then
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Old 31st March 2012, 06:45 AM   #18
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@jaycee. Ya, thats why i provided jumpers, simply put a jumper there or connect a push-on-switch if you want a seperate mute switch
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Old 31st March 2012, 07:12 AM   #19
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Got the PCBs Yippee
received 18 PCBs today...


(only issue i found was the smaller holes for the IC mounting, i have to enlarge it manually only)
any1 interested to buy, available for 150 INR per piece

Click the image to open in full size.

Click the image to open in full size.
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Old 14th April 2012, 11:58 AM   #20
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Finished amplifier modules...

Click the image to open in full size.

One PCB with basic components and second PCB with all extra components (Output inductor and resister, 220pF, 47pF and 22K and with cable provision for mute switch).

One small issue in PCB track was one pad of 220pF was not connected. And another thing was i forgot to apply thermals

Last image shows simple Power supply using 10 Amp rectifier module and 10,000uF caps.
Attached Images
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File Type: jpg DSC00220.JPG (167.9 KB, 144 views)
File Type: jpg DSC00222.JPG (135.3 KB, 114 views)
File Type: jpg DSC00224.JPG (126.1 KB, 106 views)
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Last edited by kuldeepsingh; 14th April 2012 at 12:06 PM.
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