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Old 18th April 2013, 12:10 PM   #1
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Default Good power amplifiers 6W---25W4R

Good power amplifiers 6W---25W4R.
Other audio transistors and the Franco-Polish licenses do not are not good for audio stuff.
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File Type: gif QFAmpl 25W4R.GIF (16.4 KB, 397 views)
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Old 19th April 2013, 05:56 AM   #2
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Flow forum and flow your amp schematics, and all the amplifiers are working on bad dynamic resistances driver transistors.
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Old 19th April 2013, 07:27 AM   #3
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There are some strange looking devices on the bases of the driver transistors.
This won't be a very good amp as it is very old technology with quasi-complementary outputs, and looks like it'll need to be capacitively coupled to the load.
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Old 19th April 2013, 10:10 AM   #4
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Default Re:Good power amplifiers 6W---25W4R

Attachment 343526Attachment 343526There is an old technology, but it is important as well.
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Last edited by adorn751; 19th April 2013 at 10:31 AM.
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Old 19th April 2013, 10:31 AM   #5
godfrey is offline godfrey  South Africa
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Quote:
Originally Posted by toprepairman View Post
strange looking
These wretchedly incomprehensible schematics have been posted several times in other threads, accompanied by even less comprehensible gibberish.
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Old 19th April 2013, 10:35 AM   #6
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Only he knows what he sees truth in the diagram.
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Old 19th April 2013, 11:29 AM   #7
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Originally Posted by adorn751 View Post
Only he knows what he sees truth in the diagram.
Rdc =400R(=2x 800Rcd -2x BC313/211)
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Old 20th April 2013, 02:20 AM   #8
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Default Re:Good power amplifiers 6W---25W4R

Realistically, there is no other schemes expensive and clean amps.
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Old 20th April 2013, 08:45 AM   #9
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again and again ....here is what i am going to do ...I will find some Polish friend i have write a few lines for you in polish and try to make understand what i think ...
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Old 20th April 2013, 09:28 PM   #10
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sakis keram751,a, gmail.com -no problem
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