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Old 28th August 2010, 02:58 PM   #1
hahfran is offline hahfran  Germany
diyAudio Member
 
Join Date: Dec 2007
Default Why not this pre-stage driver?

The topology in fig 1 of attachment is well known.
The of fig 2 is not.
It features high olg with , even without ac feedback, very nice harmonics spectrum.
However apparently a stable dc op is difficult to find.
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File Type: jpg Predriver2.jpg (52.0 KB, 81 views)
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