Yahoo Groups archive
Thread
2000-08-27 by jwbarlow@aol.com
In a message dated 8/27/2000 11:22:47 AM, etan@... writes: >Does anyone know of a simple way I could add a DC offset or adjust the >tracking/scaling of a resistor chain keyboard? You mean this keyboard doesn't have scale or offset trimmers? That's odd! What kind of keyboard is it? It seems like you could probably add them easily but it's surprising that they aren't there already. JB
2000-08-27 by Nathan Alan Hunsicker
They might already be there, I don't have the keyboard yet so I'm not sure. It's actually the controller portion of Moog Taurus II. I have to open it up to modify the trigger and bring the cv and gate out to 1/4" jacks anyway, when I get it I will let you know. I don't even know if this has a PS in it, I may have to handle that issue as well. -Nate jwbarlow@... wrote:
> > In a message dated 8/27/2000 11:22:47 AM, etan@... writes: > > >Does anyone know of a simple way I could add a DC offset or adjust > the > >tracking/scaling of a resistor chain keyboard? > > > You mean this keyboard doesn't have scale or offset trimmers? That's > odd! > What kind of keyboard is it? It seems like you could probably add them > easily > but it's surprising that they aren't there already. > > JB > ----------------------------------------------------------------------- > > ----------------------------------------------------------------------- >
2000-08-27 by jhaible
Assuming you have the usual current-source-drives-resistor-string setup: A trimmer at the "reference" end of the resistor string (normally ground end) will set an offset, and the current value of the current source that drives the string sets the scaling. JH. -----Urspr\ufffdngliche Nachricht----- Von: Nathan Alan Hunsicker <etan@...> An: MOTM Newsgroup <motm@egroups.com> Gesendet: Sonntag, 27. August 2000 20:18 Betreff: [motm] offset and tracking
> Does anyone know of a simple way I could add a DC offset or adjust the > tracking/scaling of a resistor chain keyboard? I want to be able to use > this keyboard with my motm gear but I would still like to have the > modules calibrated to my Encore Expressionist. I know I could calibrate > to the resistor chain keyboard and then use the Encore to set the > offset/tracking, but there's something wonderful about being able set > the encore at 0/0 and have everything in tune. (It just seems > blasphemous the knock everything out of calibration to use this silly > keyboard) Any suggestions? Simple circuits? Schematics? Let me know. > Thanks -Nate > > > > > > >