discrete audio opamps ? (was: Audio Op-Amps)

[Edu Silva]

De: Tony Clark <clark at andrews.edu>
 
>    If you can find a copy of Audio Electronics, last month's and this 
> month's deal with exactly this.  They have small circuit diagrams of 
> different kinds of discretes from tube to JFET, MOSFET to regular bipolar

> transistor, and other hybrids.  Unfortunately I missed the first issue 
> due to me having moved, so I'm not sure what was in it.

Don't worry - you can find it all at Pass Labs site:

http://www.passlabs.com/home.html

>    I did build my own op-amp more than a few months ago, it actually 
> worked pretty well for having made it out of 2N3904's and 6's!  I think 
> it was a design in the Analog Circuit Design book which has been 
> recommended on this list before.  Now I'm seriously tempted to try out 
> some of the designs they had with better trannies.
> 
>    Tony

I'm curious: have you tried any A/B test with it and IC opamps? May I see
one or two schems from this book? 

Edu

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ES2 Audio - Som & Luz
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