From: Stefan Gruhl (CIP 92) Subject: Re: Minimoog Kybd CV/Gate? & LAGing Date: Mon, 11 Sep 1995 19:40:16 +0200 (MET DST) > > > > +----------------------------------------+-------+ > | - | - | > +--|\ 330 1-10 Meg +--|\ | > | /-------/\/\/\/----+-/\/\/\/\-----+ | /--+-----> output > >----|/ | ^ +----|/ > + | | | + > input +----+ | > | > "GLIDE" ----- C = 1 - 10 uf > ----- non-polarized > | > op-amp = TL082 etc. | > ----- > --- > - > > Notice that this circuit will produce linear glide like the Minimoog > (rather than exponential like just about everything else). Exponential > glide can be achieved by getting rid of the op-amp on the left and > sticking the input right into the pot. > > As far as the external gate goes, if you want to come in to the Mini > with a V-gate rather than an S-trig, you can look on the Envelope > Generator board for where the internal V-gate comes from the keyboard > circuit and goes into a diode to the EG guts, and just add another > diode to this point to diode-sum in another gate. A +15 gate should > not be a problem since we just want to turn on an NPN transistor and > those things are pretty hardy. > Thanks for the useful information. Can't I use this as a general CV LAG processor ? I like the Oddyssey's S/H because of lagging it. Seems rather easy to built even a switchable exp/lin lag processor as a Module for my EMU. Any troubles I should think of ? thanks, stefan -- * real electronic composers don't like their music be restricted * * to the physical limitations of the human hand - AH - a great list * * Stefan Gruhl * sngruhl@cip.informatik.uni-erlangen.de * * Monthly bonus sig: ************************************************ * "The course of true SOUND never did run smooth" * * freely taken from Midsummernights dream by Willy S. * ********************************************************************* *