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15th October 2006, 05:50 AM
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#2 |
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diyAudio Member
Join Date: Apr 2003
Location: Copenhagen, Denmark
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Hi
 I have discussed this subject for some time with some of the other members here, and we found that the information in that white paper contains to little information  However we all agree on, that it could be interesting to try to "copy" this bias circuit  So if anyone has a ML amp with adaptive bias, please lift the lit on it and help us 
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Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com |
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15th October 2006, 08:33 AM
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#4 |
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diyAudio Member
Join Date: Aug 2003
Location: Prague,Czech Republic
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This circuit was developed by firm Sansui, not by ML. Look at J. Audio Eng Soc.,Vol. 29, No. 3, 1981 March. Author is Susumu Tanaka...
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15th October 2006, 08:40 AM
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#5 |
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diyAudio Member
Join Date: Apr 2003
Location: Copenhagen, Denmark
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Hi Pavel
You are right, but how does it look
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Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com |
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15th October 2006, 08:57 AM
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#6 |
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diyAudio Member
Join Date: Jan 2004
Location: Split, Croatia
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...like this www.pat2pdf.org/patents/pat4401951.pdf
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Non é mai abbastanza... |
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15th October 2006, 09:05 AM
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#7 |
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diyAudio Member
Join Date: Apr 2003
Location: Copenhagen, Denmark
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Well
Has somebody build an diy amp using this ???
__________________
Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com |
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16th October 2006, 02:03 AM
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#8 | |
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diyAudio Member
Join Date: Dec 2004
Location: Bukit Mertajam
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Quote:
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16th October 2006, 06:34 PM
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#10 |
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The one and only
Join Date: Mar 2001
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These schemes are most similar to the "optical bias" circuit,
my patent #4,752,745 from 1988, where bias feedback is taken from the Bases (or Gates) of the output devices. 
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adaptive bias theory
