6W, Class A, hopefully something I can build. :D - Page 10

keantoken · 16th February 2009, 04:09 AM

Alright, I have been able to judge sound quality.

This amplifier beats everything in my house by far, even with the 3" speaker and it's shoebox enclosure.

This most obviously means that my speaker and enclosure are not so inferior as I have been thinking.

Since I've never heard anything better than this, I can't compare it to anything.

Now all I need is to make two channels and put them in a box with trafos, caps and a plugin cord. Hopefully I can also increase PSU voltage, allowing higher volume.

EDIT: Alright, after extended listening, I've found that the most noticeable difference between this amp and my other amplifiers is its ability to reproduce electronic music. It sounds true and clear, no matter what kind of treble you abuse it with. I never thought electronic music could made to sound "natural", but I have proven myself wrong. What sits on my bench right now, if the proof.

- keantoken

keantoken · 16th February 2009, 05:32 AM

Alright, here is my "workbench".

Here is my amp in its latest incarnation. The coax cable connection is my o'scope probe...

Zoomed out, you can see the speaker I'm using...

And here is the first working incarnation. If you're complaining about sound quality with the 3" speaker, try listening to this one!

- keantoken

AKSA · 16th February 2009, 08:10 PM

KT,

Your workbench is almost as messy as mine.

That is good. Sign of a creative genius at work.......

Hugh

keantoken · 16th February 2009, 10:43 PM

I wouldn't elevate myself to "creative genius", but thank you!

Too much organization makes me feel insecure. I feel better if I can just snatch up the desired component immediately on impulse rather than going through a bunch of drawers...

Well now that I've made it work well, I don't know exactly what to do... Next I want to put in tone controls, volume of course, but that will have to wait until I have the parts necessary to make a case, PCB, etc. And to get that amount of money will take some time.

Of course, I could also take my chances at point-to-point soldering and see if I can put it in a scavenged case I already have handy. Still then I would need to pull a good trafo out of something...

Long-term listening will have to come after I have installed all output devices and can push an 8 ohm load at decent volume.

- keantoken

tvparts · 27th January 2011, 05:34 AM

All the electrical engineering calcs in this thread make me want to reach for my herbal vaporiser. lol.

AndrewT · 27th January 2011, 09:26 AM

I have gone back through the last 46posts and can find only one formula (post54).
Why would anyone need a "herbal vaporiser?

destroyer X · 11:35 AM

From time to time appear nice things alike this one you have made.

My deep and noisy congratulations....it's.not usuall a diy inside the diy.... say...hands on work...there's DIY comments, DIY evaluations, DIY opinions, DIY calculations and other things..but hands on work is a rarity.

regards,

Carlos

16th February 2009, 04:09 AM	#91
keantoken diyAudio Member Join Date: Aug 2006 Location: Texas Blog Entries: 1	Alright, I have been able to judge sound quality. This amplifier beats everything in my house by far, even with the 3" speaker and it's shoebox enclosure. This most obviously means that my speaker and enclosure are not so inferior as I have been thinking. Since I've never heard anything better than this, I can't compare it to anything. Now all I need is to make two channels and put them in a box with trafos, caps and a plugin cord. Hopefully I can also increase PSU voltage, allowing higher volume. EDIT: Alright, after extended listening, I've found that the most noticeable difference between this amp and my other amplifiers is its ability to reproduce electronic music. It sounds true and clear, no matter what kind of treble you abuse it with. I never thought electronic music could made to sound "natural", but I have proven myself wrong. What sits on my bench right now, if the proof. - keantoken __________________ Contribute to the DIYAudio WIKI! http://www.diyaudio.com/forums/every...p-sign-up.html LTSpice wiki with special attention to new users' troubles

16th February 2009, 05:32 AM	#92
keantoken diyAudio Member Join Date: Aug 2006 Location: Texas Blog Entries: 1	Pics!!! Alright, here is my "workbench". Here is my amp in its latest incarnation. The coax cable connection is my o'scope probe... Zoomed out, you can see the speaker I'm using... And here is the first working incarnation. If you're complaining about sound quality with the 3" speaker, try listening to this one! - keantoken __________________ Contribute to the DIYAudio WIKI! http://www.diyaudio.com/forums/every...p-sign-up.html LTSpice wiki with special attention to new users' troubles

16th February 2009, 08:10 PM	#93
AKSA diyAudio Member Join Date: Sep 2001 Location: Melbourne, Australia	KT, Your workbench is almost as messy as mine. That is good. Sign of a creative genius at work....... Hugh __________________ Aspen Amplifiers P/L (Australia) www.aksaonline.com

16th February 2009, 10:43 PM	#94
keantoken diyAudio Member Join Date: Aug 2006 Location: Texas Blog Entries: 1	I wouldn't elevate myself to "creative genius", but thank you! Too much organization makes me feel insecure. I feel better if I can just snatch up the desired component immediately on impulse rather than going through a bunch of drawers... Well now that I've made it work well, I don't know exactly what to do... Next I want to put in tone controls, volume of course, but that will have to wait until I have the parts necessary to make a case, PCB, etc. And to get that amount of money will take some time. Of course, I could also take my chances at point-to-point soldering and see if I can put it in a scavenged case I already have handy. Still then I would need to pull a good trafo out of something... Long-term listening will have to come after I have installed all output devices and can push an 8 ohm load at decent volume. - keantoken __________________ Contribute to the DIYAudio WIKI! http://www.diyaudio.com/forums/every...p-sign-up.html LTSpice wiki with special attention to new users' troubles

27th January 2011, 09:26 AM	#96
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	I have gone back through the last 46posts and can find only one formula (post54). Why would anyone need a "herbal vaporiser? __________________ regards Andrew T.


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27th January 2011, 05:34 AM	#95
tvparts diyAudio Member Join Date: Jan 2011	All the electrical engineering calcs in this thread make me want to reach for my herbal vaporiser. lol.

27th January 2011, 11:28 AM	#97
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife - Brasil Northeast	This is the DIY spirit Keantoken....i thank you very much From time to time appear nice things alike this one you have made. My deep and noisy congratulations....it's.not usuall a diy inside the diy.... say...hands on work...there's DIY comments, DIY evaluations, DIY opinions, DIY calculations and other things..but hands on work is a rarity. regards, Carlos __________________ Try to build an amplifier folks ... it is pure adrenaline! Last edited by destroyer X; 27th January 2011 at 11:35 AM.

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