[sdiy] Hmmm...OK NOW you can panic :(

harrybissell harrybissell at prodigy.net
Wed Sep 29 07:38:06 CEST 2004


You might do it with a bunch of monolythic quads... it will be tough
because the mirrors MUST use diode connected transistors as the diodes
in the circuit. It will NOT work with diodes.

I do this as a spice model all the time.

H^) harry

mark verbos wrote:

> TomG made a discrete model of the 3080 a long time ago. I never built
> one, but I have built some of the buchla oscillators that have a similar
> discrete OTA. The good thing when you build them from the ground up is
> that you can run 'em from an NPN expo converter AND can add a symetry
> control.
>
> Mark
>
> Tony Clark wrote:
>
> >   Hi List,
> >
> >   Well this officially sucks.  Now if only I could find a "life-time"
> >buy of those elusive 3080M's.  I bought up a bunch a while back when I
> >knew supply was getting limited, but this throws a HUGE monkey wrench
> >into any future designs I make...
> >   Anyone got a good discrete or semi-discrete OTA design they'd be
> >willing to share?  Evidently it's time to get re-aquainted with the
> >breadboard and the 3080 schematic...
> >
> >   Cheers,
> >
> >   Tony
> >
> >-----------------------------------------------------------------------
> >         The E-Music DIY Archive - New Site Coming Soon!
> >-----------------------------------------------------------------------
> >
> >"We wouldn't want to ship something that doesn't work"
> >   - Carl Stork, general manager, Microsoft Windows division
> >     Excerpt from EE Times April 2, 2001
> >
> >
> >
> >




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