Super clean audio amplifier P8W4R

mac1257 · 20th September 2011, 01:59 AM

Bonsai · 20th September 2011, 04:47 AM

Mac, where did you get this from?

sakis · 11:47 AM

your amplifiers reminds me the directions of my doctor ....

stop eating anything green yellow black brown and bla bla bla ( only things left to eat is stones and seeds ) replace cofee with tea , stop smoking and most of all stop having stress at work

it will eventually make my stomach better but trully dont know how and when can i do that ...

Point is that as a doctor or an electronics designer we should provide solutions that have a good percentage of realistic approach .....

obviously most of your schematics might have very good theoretical approach but made with obsolete parts and sorry to say with obsolete technology ....

by the way .... you seem to also failed to answer my previous question which was :
What is going to happen in this circuit if voltage is not 24.7 and its 25.2 ?
then again what will happen in this circuit if you calculate everything with a tollerance of 10% ( for resistors and caps )
can you point us a source for BC 158 with b=300 ?
i am 45 years old and i dont even remember seen an amplifier that old that works with BC 158 and in my shop we repair an average of 200-300 comercial amplifiers per year ...

kind regards
sakis

Tajzmaj · 20th September 2011, 03:38 PM

mac1257 · 20th September 2011, 07:28 PM

These are my own projects and transistors are the Polish and French production.

sakis · 20th September 2011, 07:35 PM

ok then .... i can expect a polish manufacturer of transistor to deliver BC 158 with b=300 and with +-10% tollerance so someone will go ahead and try any of these projects you posted here and in some other thread ..

i dont mean to be agresive ... realistic sound bit better

wahab · 20th September 2011, 08:02 PM

This "design" is quite amazing....

mac1257 · 21st September 2011, 07:46 AM

Quote:

Originally Posted by wahab

This "design" is quite amazing....

Other types of transistors can search audio, dynamic measuring system. Transistors can be a Japanese or English or American company PHILCO. American driver transistors never been good for audio amplifiers, because they were too slow-acting.

mac1257 · 21st September 2011, 01:04 PM

Amplifier P8W1R

20th September 2011, 04:47 AM	#2
Bonsai diyAudio Member Join Date: Aug 2006 Location: Taipei, Taiwan	Mac, where did you get this from? __________________ bonsai http://www.hifisonix.com/

20th September 2011, 11:41 AM	#3
sakis diyAudio Member Join Date: Jan 2006 Location: nea makri athens greece	your amplifiers reminds me the directions of my doctor .... stop eating anything green yellow black brown and bla bla bla ( only things left to eat is stones and seeds ) replace cofee with tea , stop smoking and most of all stop having stress at work it will eventually make my stomach better but trully dont know how and when can i do that ... Point is that as a doctor or an electronics designer we should provide solutions that have a good percentage of realistic approach ..... obviously most of your schematics might have very good theoretical approach but made with obsolete parts and sorry to say with obsolete technology .... by the way .... you seem to also failed to answer my previous question which was : What is going to happen in this circuit if voltage is not 24.7 and its 25.2 ? then again what will happen in this circuit if you calculate everything with a tollerance of 10% ( for resistors and caps ) can you point us a source for BC 158 with b=300 ? i am 45 years old and i dont even remember seen an amplifier that old that works with BC 158 and in my shop we repair an average of 200-300 comercial amplifiers per year ... kind regards sakis __________________ SERVICE ΙΑΠΩΝΙΚΩΝ ΜΗΧΑΝΗΜΑΤΩΝ ΗΧΟΥ www.eastelectronics.gr Last edited by sakis; 20th September 2011 at 11:47 AM.

20th September 2011, 07:35 PM	#6
sakis diyAudio Member Join Date: Jan 2006 Location: nea makri athens greece	ok then .... i can expect a polish manufacturer of transistor to deliver BC 158 with b=300 and with +-10% tollerance so someone will go ahead and try any of these projects you posted here and in some other thread .. i dont mean to be agresive ... realistic sound bit better __________________ SERVICE ΙΑΠΩΝΙΚΩΝ ΜΗΧΑΝΗΜΑΤΩΝ ΗΧΟΥ www.eastelectronics.gr

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20th September 2011, 03:38 PM	#4
Tajzmaj diyAudio Member Join Date: Mar 2011 Location: Ljubljana

20th September 2011, 07:28 PM	#5
mac1257 diyAudio Member Join Date: Mar 2011 Location: Stalowa Wola	These are my own projects and transistors are the Polish and French production.

20th September 2011, 08:02 PM	#7
wahab diyAudio Member Join Date: Nov 2009 Location: algeria/france	This "design" is quite amazing....

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