My 1st DIY project

pk386 · 6th May 2004, 02:49 PM

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

pk386 · 6th May 2004, 02:51 PM

...

Taco · 6th May 2004, 03:04 PM

Cool, nice & compact 3D soldering

Next step a Gainclone?

rif · 6th May 2004, 03:37 PM

I'm getting page unavailable -- is it my work connection blocking it?

SSV · 6th May 2004, 04:08 PM

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/

Bill Fitzpatrick · 6th May 2004, 04:16 PM

Probably not. When you get a free web page at Geocheapies almost nobody get to see it.

jpg · 6th May 2004, 04:48 PM

No problem viewing your pics here.

I guess you can call that a compact design.

c.

rif · 6th May 2004, 11:57 PM

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.

needtubes · 7th May 2004, 12:09 AM

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?

BlackBLOOD · 7th May 2004, 02:45 PM

Fill the box with hot melted silicon and you will be shure that that nothing is shorted..

6th May 2004, 02:49 PM	#1
pk386 diyAudio Member Join Date: Feb 2003 Location: USM	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 __________________ "I haven't failed. I've just found 10,000 ways that don't work." Thomas Edison www.ocremix.com - Cool music

6th May 2004, 02:51 PM	#2
pk386 diyAudio Member Join Date: Feb 2003 Location: USM	... __________________ "I haven't failed. I've just found 10,000 ways that don't work." Thomas Edison www.ocremix.com - Cool music

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6th May 2004, 03:04 PM	#3
Taco diyAudio Member Join Date: Nov 2002 Location: Place in the Netherlands	Cool, nice & compact 3D soldering Next step a Gainclone?

6th May 2004, 03:37 PM	#4
rif diyAudio Member Join Date: Jan 2003 Location: Southern NJ	I'm getting page unavailable -- is it my work connection blocking it?

6th May 2004, 04:08 PM	#5
SSV diyAudio Member Join Date: Apr 2004 Location: Mississippi	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/

6th May 2004, 04:16 PM	#6
Bill Fitzpatrick diyAudio Member Join Date: Jun 2001 Location: Eugene, OR	Probably not. When you get a free web page at Geocheapies almost nobody get to see it.

6th May 2004, 04:48 PM	#7
jpg diyAudio Member Join Date: Mar 2003 Location: Germany	No problem viewing your pics here. I guess you can call that a compact design. c.

6th May 2004, 11:57 PM	#8
rif diyAudio Member Join Date: Jan 2003 Location: Southern NJ	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.

7th May 2004, 12:09 AM	#9
needtubes diyAudio Member Join Date: May 2003 Location: USA	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?

7th May 2004, 02:45 PM	#10
BlackBLOOD diyAudio Member Join Date: Apr 2004 Location: Varna,Bulgaria	Fill the box with hot melted silicon and you will be shure that that nothing is shorted..