[sdiy] What is wrong with this circuit?

[Paul Schreiber]

It's OK, there is a DC bias path via R11. Usually, the cap would be in 
series with R10 but they probably did it this way for the pc board layout.

Paul S.

----- Original Message ----- 
From: "mike ruberto" <somnium7 at gmail.com>
To: "Synth DIY" <synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, January 29, 2008 11:17 PM
Subject: [sdiy] What is wrong with this circuit?


> Something is bugging me about this circuit. It just looks wrong to me.
> I think it's the feedback section around M1...
> http://s108.photobucket.com/albums/n13/somnium7/gear/?action=view&current=RX-7_Mic_Input.jpg
>
> Shouldn't R12 be connected directly to the negative input?
> Does this look normal?
>
> M. A. Ruberto
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