p3a up and running :)

Jean · 14th November 2002, 06:46 AM

So, finally got the right size to3p style insulators and heat paste and one channel is up and running w/o any smoke so far

DC voltage on output is at 16.5 millivolts, much better than previous attempt at 36 Volts . This is with a load and input connected

I am crossing my fingers that it will stay that way w/o blowing up.
I am using On Semi mjl 193/194 pair. Rail voltage is at 36-37 volts.

If it doesn't let any magic smoke out, I will connect it to my diy speakers and see how well it sounds

Don't really want to take my chances just yet.

Woohoo.

Vivek · 14th November 2002, 08:26 AM

How about some pics?

Vivek

Jean · 15th November 2002, 05:50 AM

Hello Vivek,

I will post some pictures soon. Right now its just heatinks with pcboards mounted to them, and wires going to the power supply etc.

0 humm even with my ear next to the speakers, after about 2 hours of running it "idles" with 16 millivolts dc on output.

AKSA · 15th November 2002, 06:04 AM

Jean,

Now you have it running, can you tell us how it sounds?

Cheers,

Hugh

www.aksaonline.com

Jean · 15th November 2002, 06:36 AM

Hello Hugh!

This weekend I will try and do some listening and post my impressions. I am not really up on all the terms that magazines and professional reviewers use though.

I do most of my listening in near field, or on my headphones. I don't really have any hi-end source or pre amp equipment, maybe i'll connect my pc m-audio 2496 card directly to the amplifier and use it along with a dvd drive for the source. My other source is technics sl1200 mk2s but w/o any "reference" quality vinyl.

It would be nice to compare it to amp like Aksa on same set of speakers. So, maybe Santa will bring me Aksa to play with

Jean.

AKSA · 15th November 2002, 11:10 AM

Jean,

Perhaps with little knowledge of the words and phrases used in stereo mags, you might come up with a true and accurate description of the sound..........

You can always trip along to George or Dan in Sacto and take your new creation with you - they would be delighted to compare!

By coincidence, just today I despatched two more 55W AKSAs to Dan.

Cheers,

Hugh

www.aksaonline.com

Jean · 20th November 2002, 07:58 AM

I never thought that chassis would be such a pain in the rear. I am trying to fit everything in and my 500va tranny is almost too big. Now I am thinking about getting a 330va just so I can fit it better.

Hugh,

can 25-0-25 be used with Aksa 100 kit ?

Jean · 20th November 2002, 09:45 AM

Hugh,

Please ignore my question, I found the answer on your website.

Jean · 27th November 2002, 07:08 AM

Here is a picture of a case which is almost finished now. I bought four matching heatsinks on ebay, and currenly only two are being used. I plan on adding two more channels to this chassis.

BrianGT · 27th November 2002, 07:25 AM

nice looking chassis!

--
Brian

14th November 2002, 06:46 AM	#1
Jean diyAudio Member Join Date: Mar 2002 Location: Sacramento, CA	p3a up and running :) So, finally got the right size to3p style insulators and heat paste and one channel is up and running w/o any smoke so far DC voltage on output is at 16.5 millivolts, much better than previous attempt at 36 Volts . This is with a load and input connected I am crossing my fingers that it will stay that way w/o blowing up. I am using On Semi mjl 193/194 pair. Rail voltage is at 36-37 volts. If it doesn't let any magic smoke out, I will connect it to my diy speakers and see how well it sounds Don't really want to take my chances just yet. Woohoo.

15th November 2002, 06:04 AM	#4
AKSA diyAudio Member Join Date: Sep 2001 Location: Melbourne, Australia	Jean, Now you have it running, can you tell us how it sounds? Cheers, Hugh www.aksaonline.com __________________ Aspen Amplifiers P/L (Australia) www.aksaonline.com

15th November 2002, 11:10 AM	#6
AKSA diyAudio Member Join Date: Sep 2001 Location: Melbourne, Australia	Jean, Perhaps with little knowledge of the words and phrases used in stereo mags, you might come up with a true and accurate description of the sound.......... You can always trip along to George or Dan in Sacto and take your new creation with you - they would be delighted to compare! By coincidence, just today I despatched two more 55W AKSAs to Dan. Cheers, Hugh www.aksaonline.com __________________ Aspen Amplifiers P/L (Australia) www.aksaonline.com

27th November 2002, 07:08 AM	#9
Jean diyAudio Member Join Date: Mar 2002 Location: Sacramento, CA	getting there :) Here is a picture of a case which is almost finished now. I bought four matching heatsinks on ebay, and currenly only two are being used. I plan on adding two more channels to this chassis.

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14th November 2002, 08:26 AM	#2
Vivek diyAudio Member Join Date: Nov 2000 Location: Bangalore, India	How about some pics? Vivek

15th November 2002, 05:50 AM	#3
Jean diyAudio Member Join Date: Mar 2002 Location: Sacramento, CA	Hello Vivek, I will post some pictures soon. Right now its just heatinks with pcboards mounted to them, and wires going to the power supply etc. 0 humm even with my ear next to the speakers, after about 2 hours of running it "idles" with 16 millivolts dc on output.

15th November 2002, 06:36 AM	#5
Jean diyAudio Member Join Date: Mar 2002 Location: Sacramento, CA	Hello Hugh! This weekend I will try and do some listening and post my impressions. I am not really up on all the terms that magazines and professional reviewers use though. I do most of my listening in near field, or on my headphones. I don't really have any hi-end source or pre amp equipment, maybe i'll connect my pc m-audio 2496 card directly to the amplifier and use it along with a dvd drive for the source. My other source is technics sl1200 mk2s but w/o any "reference" quality vinyl. It would be nice to compare it to amp like Aksa on same set of speakers. So, maybe Santa will bring me Aksa to play with Jean.

20th November 2002, 07:58 AM	#7
Jean diyAudio Member Join Date: Mar 2002 Location: Sacramento, CA	I never thought that chassis would be such a pain in the rear. I am trying to fit everything in and my 500va tranny is almost too big. Now I am thinking about getting a 330va just so I can fit it better. Hugh, can 25-0-25 be used with Aksa 100 kit ?

20th November 2002, 09:45 AM	#8
Jean diyAudio Member Join Date: Mar 2002 Location: Sacramento, CA	Hugh, Please ignore my question, I found the answer on your website.

27th November 2002, 07:25 AM	#10
BrianGT diyAudio Moderator Emeritus Join Date: Jan 2002 Location: near Atlanta, GA	nice looking chassis! -- Brian

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