Yahoo Groups archive

Cgs synth

Index last updated: 2026-04-28 23:16 UTC

Message

Re: Matched transistors in VCA (CGS64)

2007-06-07 by sasami@hotkey.net.au

>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
_______________________________________________________________________
Ken Stone sasami@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.