Brian,
Back in the early 80's I got a voltage convertor from Dale Blake for
my 101, I also recieved the schematics and installation instructions
and so built another for my 500.
If I can track someone down with a scanner I'll post them here.
Basically the voltage convertor takes the 1 volt per octave input from
any sequencer (I was using an Arp but later Rolands MPU101 midi to cv
convertor)and scales it to be used with EML's 1.2 volt per octave
system. It works great and cost a few dollars in parts.
> > I am trying to interface my EML101 to an Encore Expressionist MIDI>CV
> > converter and am having a heck of a time trying to get the synth to
> > track somewhat chromatically. The patch panel doesn't have the
> > sequencer input but does have the OCS1 Ext CV in. It seems that
there
> > are several interactive pots to set pitch but I have no idea how to
> > make it work.
> >
> > Any suggestions?
> >
> > Brian Folkes
> >
>
> You can't get the whole instrument to follow any jack and knob
combos and the external
> CV seems to have been intended for modulation, and only one envelope
will respond to
> the Trig in.
>
> What I figured out was I could tap into the keyboard jack by
unscrewing the plug. That way
> I could see which pin is what. I posted my findings on Analogue
Heaven years ago though
> I've heard from someone with a different keyboard connector. Anyway
one of the pins is
> like an offset for the duophony. You'd probably not want to mess
with it until you master
> getting CV/Gate to work. The other thing that really threw me for
about an hour is that
> when the EML receives a gate there is an internal buffer that
samples and holds the CV
> coming in when the gate goes on. So if you are tweaking the CV on
the expressionist you
> won't hear a change until you send a new gate. This might be the
reason for the CV input
> jack that seems meant only for modulation. You can't modulate your
incoming CV (though
> obviously there are many modulation opportunities within the EML.
>
> Also, while it may be obvious for "old pros". I found the best way
to get it to track is to
> temporarily forget about pitch, just get one octave to respond to
one octave even if the "C"
> sounds as an "F" a quater tone sharp or something. Once you get your
octaves to be
> octaves then it's a piece of cake to just make the C to a C with tuning
>