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-   -   Why not this pre-stage driver? (http://www.diyaudio.com/forums/solid-state/172702-why-not-pre-stage-driver.html)

hahfran 28th August 2010 02:58 PM

Why not this pre-stage driver?
 
2 Attachment(s)
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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