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Old 6th May 2004, 02:49 PM   #1
pk386 is offline pk386  United States
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Default My 1st DIY project

Let me introduce my self, my name is Morgan and I'm a sutdent at the University of Southern Mississippi. This is my first Completed DIY audio project a simple Head phone amp.
It's pertty much based on Chu Moy's amp at headwize.com

http://headwize2.powerpill.org/proje...=cmoy2_prj.htm

The purpose of this project was to examine how different types of components can affect the sound. Example why use a polypropylene as an input coupeling cap instead of a electrolytic. Since I am a student on a limited budget I was not able to use top of the line components but I was pleased with the results I did achieve.

here are the pics of the project

(Cut and paste them in to you web browser)

http://www.geocities.com/pk386/pics/case2.JPG

http://www.geocities.com/pk386/pics/internals1.JPG

http://www.geocities.com/pk386/pics/setup.JPG
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Old 6th May 2004, 02:51 PM   #2
pk386 is offline pk386  United States
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Old 6th May 2004, 03:04 PM   #3
Taco is offline Taco  Netherlands
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Cool, nice & compact 3D soldering Next step a Gainclone?
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Old 6th May 2004, 03:37 PM   #4
rif is offline rif  United States
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I'm getting page unavailable -- is it my work connection blocking it?
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Old 6th May 2004, 04:08 PM   #5
SSV is offline SSV  United States
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Wow, I would have been screaming by now working in such a confined enclosure!!! Great job, pk386!



Hey rif,
I had the same problem where I couldn't see the pics. I then cut some of the url off and got there. Try this and then click on each pic link..........

http://www.geocities.com/pk386/pics/
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Old 6th May 2004, 04:16 PM   #6
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Probably not. When you get a free web page at Geocheapies almost nobody get to see it.
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Old 6th May 2004, 04:48 PM   #7
jpg is offline jpg  Germany
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No problem viewing your pics here.

I guess you can call that a compact design.

c.
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Old 6th May 2004, 11:57 PM   #8
rif is offline rif  United States
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Very nice!

How many tries did it take to make sure there were no shorts when closing the case

Why breakout into RCA's? I don't think that you lose much in signal quality.
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Old 7th May 2004, 12:09 AM   #9
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Nice little amp. The CMOY is a fun circuit to build... and rebuild... and such. I have made several CMOYs and modded CMOYs all in Altoids tins. I even put one in a 9V battery case with power supply included (no easy task heh).

I do wonder though... why did you choose to point-to-point/dead bug wire the amp? Usually most new DIYers use Tangent's walkthrough and board layout.... I PtP'ed my first amp.... will never do that again. heh It was a tad mroe complex than the CMOY.

What opamp did you use?
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Old 7th May 2004, 02:45 PM   #10
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Fill the box with hot melted silicon and you will be shure that that nothing is shorted..


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