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Old 1st October 2011, 01:53 PM   #1
mac1257 is offline mac1257  Australia
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Default Symasym done differently, clean Hi Fi amplifier P12W4R
Symasym done differently, clean Hi Fi amplifier P12W4R
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Last edited by mac1257; 1st October 2011 at 01:56 PM.
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Old 1st October 2011, 08:28 PM   #2
mac1257 is offline mac1257  Australia
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Default Correction for the scheme to the amplifier P12W4R
Correction for the scheme to the amplifier P12W4R
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Old 1st October 2011, 09:23 PM   #3
jaycee is offline jaycee  United Kingdom
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Look like the Matti Otala circuit to me.. a bit cramped! I guess this was for posting on some packet radio system?
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Old 2nd October 2011, 01:50 PM   #4
mac1257 is offline mac1257  Australia
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Quote:
Originally Posted by jaycee View Post
Look like the Matti Otala circuit to me.. a bit cramped! I guess this was for posting on some packet radio system?
This compensation information is good to save for school notebook.
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Old 2nd October 2011, 02:54 PM   #5
mac1257 is offline mac1257  Australia
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Default Re:Hi FI P12W4R
Even the good news is not good without a description of its purpose. Anyone who examines method the dynamic linearity of the transistors, also knows. This is possible only low power and a clean amp.
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Old 3rd October 2011, 01:34 PM   #6
mac1257 is offline mac1257  Australia
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Quote:
Originally Posted by mac1257 View Post
Even the good news is not good without a description of its purpose. Anyone who examines method the dynamic linearity of the transistors, also knows. This is possible only low power and a clean amp.
Even the good news is not good without a description of its purpose. Anyone who examines the methods of the dynamic linearity of transistors, knows this well, this is possible only for low power and for a clean amp. All my audio amplifier electronic schematics are pure and classical technique. Pure amplifier is no worse than the symmetrical.
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Last edited by mac1257; 3rd October 2011 at 01:49 PM.
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Old 3rd October 2011, 03:03 PM   #7
mac1257 is offline mac1257  Australia
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Default Re:Hi FI P12W4R
BD355/354 power transistors(Rcd=13R) are not good for pure audio amplifier, but what is good.
Last edited by mac1257; 3rd October 2011 at 03:11 PM.
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Old 4th October 2011, 05:46 AM   #8
mac1257 is offline mac1257  Australia
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Default Re:Hi FI P12W4R
Clean Audio transistors operate dynamically on the resistance of the collector Rcd = 150R - 240R - 685R - 1.5 --- 1.8k, have a greater range of linearity current -for the collector resistance. In addition, the serial bases resistance is basis for a stable and linear operation of the transistor.
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Old 4th October 2011, 07:54 AM   #9
sakis is offline sakis  Greece
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here we go again......
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Old 9th October 2011, 02:21 PM   #10
mac1257 is offline mac1257  Australia
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Default Correction for the scheme to the amplifier Hi FI P12W4R
Correction for the scheme to the amplifier Hi FI P12W4
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