I have the schematics for both the Analog and Digital Oberheim 2-voice
keyboards if you want to look at them. The digital is pretty
complicated but the analog one is fairly easy to understand. They are
on my .Mac public folder:

http://homepage.mac.com/ersatzplanet/

I understand the lure of analog controllers! Something really basic
and primal being able to control things with just a battery and a
resistive element - weather thats a pot, a switch with a resistor, a
piece of tape recording tape stretched over a metal plate etc etc. All
fun (and cheap to experiment with!)
-James

On Feb 3, 2008, at 12:43 PM, Stu Grimshaw wrote:

> --- In Doepfer_a100@yahoogroups.com , James Husted
> <the_ersatz_planet@...> wrote:
>>
>> Stu-
>> I know this may be out of your price range - and may not fit your
>> design criteria - but for ease of assembly have you thought of the
>> Doepfer CTM64 or MKE combined with a MCV4 or A-190. The limitations
>> are no portamento and you will be defaulting to tempered scales but
>> you could have LOTS of switches/buttons plus the added modulation and
>> pitch bend inputs.
>>
>> -James
>>
>
> hi james,
>
> that was actually the original plan, but the pure analog attempt has a
> few features that i find appealing: power comes from the modular, the
> resistors will not be completely accurate, i save myself a midi-to-cv
> converter (although i have a couple) and it's all so hands-on when it
> comes to adding pitch bend and firing off a gate while holding a note
> etc. i save myself a ton of wiring too - all of which needs to be
> soldered!
>
> if it is as simple (though rudimentary) as i think it is, then the
> analog way is easier, as well as offering opportunities for more
> individual features/limitations/quirks. i love quirks :)
>
> relying totally on a single control voltage solution (so no release
> envelopes here unless we inclue a s+h) also allows me to use the a112
> sampler to record melodies and such - the necessary gates are still
> produced by cv>0v and therefore don't need to be recorded separately.
> my dream is to leave the electribe at home :)
>
> cheers,
>
> stu



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