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Cgs synth

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Re: Matched transistors in VCA (CGS64)

2007-06-08 by Larry T.

continuing in the 'dumb' question category, Jim's diagram only shown
on connection for the Device Under Test. Could someone 'fill in the
blanks' as to how the dut is actually connected?

Larry T.

--- In cgs_synth@yahoogroups.com, Dave Kendall <davekendall@...> wrote:
>
> Thanks guys.
>
> :-)
>
> On 7 Jun 2007, at 14:43, sasami@... wrote:
>
> >
> > >Thanks for the tip.
> > >I checked this circuit
> > >http://www.oldcrows.net/~patchell/matcher/matcher.html
> > >It shows a PNP tranny.
> > >Would NPNs also work?
> >
> > Reverse all polarities for NPNs (i.e. the power supply, any diodes,
> > and
> > electros etc).
> >
> > >Also (this may be a dumb question....) What does the D.U.T.
refer to
> > at
> > >top right of the schemo? GND maybe? it isn't the
> > >multimeter............
> >
> > D.U.T. = Device Under Test, namely the transistor you are testing.
> >
> > Ken

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