MAT02, 03 Elektor preamp schematic - Page 5 - diyAudio
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Old 4th April 2005, 02:14 PM   #41
awpagan is offline awpagan  Australia
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Default pcb

this circuit looks very interesting also i have a far amount of bc327/550's sitting around.
any chance of getting the pcb layouts???
PDF is best
any other info on the would be helpfull too.

thank you
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Old 9th April 2005, 05:08 PM   #42
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You can found all the articles in this book:

High end audio equipment - Elektor Electronics

ISBN 0-905705-40-8

on amazon.com

Unfortunately i have the book but my scanner has been breaked by my son

Bye
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Old 13th April 2005, 01:47 PM   #43
awpagan is offline awpagan  Australia
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Default pcb

thanks alessandro

book ordered
mainly need info on the ufoa pdf schematic refered by resolution
pcb layout would be nice but can do my own layout

allan
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Old 14th April 2005, 01:41 PM   #44
awpagan is offline awpagan  Australia
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Default 1uF

i have a question about the ufoa.pdf circuit
C1 is quite large 1uF
Is this correct?
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Old 15th January 2006, 01:46 PM   #45
r!sc! is offline r!sc!  Serbia
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Layout 4 this preamp:

Click the image to open in full size.

Boban
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Old 19th February 2007, 11:26 AM   #46
lineup is offline lineup  Sweden
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Default MAT02 MAT03 elektor preamp class a

Quote:
Originally posted by peranders
I have MAT02/03 for sale.....
Quote:
Originally posted by Samuel Jayaraj

Thanks so much; the search is over!!!
If I remember right, Iq is set to 40mA.

I've tested the sound of the servo version some years ago with MAT02 and BC560C;
its probably the best I've heard till date. Thanks again.
.


I have read Elektor and still subscribe to this electronics magazine.
My collection is several 100 of magazines
.. all 'stored' in big piles here in my room.
Some are read so many times, that they have fallen into pieces ...


This MAT02 MAT03 pre amplifier is one of my absolute Elektor favourites.
Of all times!


There is also some other versions of same circuit concept, in Elektor,
used for Class A HeadPhones discrete amplifier.


I can only recommend this 'Super Class A Pre Amplifier'.
Very good Audio!




Attachment:
The circuit schematic, again ....

lineup
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File Type: jpg mat02-03_discrete-opamp.jpg (59.0 KB, 2194 views)
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Old 19th February 2007, 03:03 PM   #47
lineup is offline lineup  Sweden
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it is good

if you do not believe

Try it!

It will beat most any Op-Amp .... even Analog Devices AD811 !!!!
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Old 19th February 2007, 07:38 PM   #48
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Default So:

What makes this preamp THE "HI END" ???
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Old 19th February 2007, 08:37 PM   #49
lineup is offline lineup  Sweden
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Default Re: So:

Quote:
Originally posted by bogdan_borko
What makes this preamp THE "HI END" ???
bogdan, what do YOU think?

at least you may have an idea, by study schematic a bit



My own idea:
- Excellent matched input pairs. Expensive transistors? YEEEES!
- Full Class A output stage. Does Op-Amps have this? NO!
.... 98% of them OP have a Current idle supply TOTALLY of <10mA
.... This amplifier has got 40mA idle, only in output stage
.... Which means it will put out close to 80mA in True Class A


lineup
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Old 19th February 2007, 08:53 PM   #50
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1."Expensive transistors?" - NOt a high end argument!

2.It didn`t ment to copare it with op amps...

3."This amplifier has got 40mA idle -" NOt a high end argument!

4."Which means it will put out close to 80mA in True Class A" - all discrete preams work in TRUE class A.


so?
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