[sdiy] Identification of an unknown MIDI CV interface

[mark verbos]

Not so different from the Doepfer MCV4 that I have right here in front of me. 

Mark










> On Sep 28, 2022, at 1:09 PM, René Schmitz <synth at schmitzbits.de> wrote:
> 
> Hi all,
> 
> 
> 
> I've goggled a bit and it seems this is a clone of the Doepfer MCV1, which apparently was published as a set of articles in 
> 
> the German Magazine "Funkschau".
> 
> http://studiorepair.com/gallery/Doepfer/MCV1/slides/Doepfer_MCV1_PCB_CS__STUDIOREPAIR_08031701_0803193972.html <http://studiorepair.com/gallery/Doepfer/MCV1/slides/Doepfer_MCV1_PCB_CS__STUDIOREPAIR_08031701_0803193972.html>
> https://doepfer.de/alte_anl.txt/MCV1_V1.txt <https://doepfer.de/alte_anl.txt/MCV1_V1.txt>
> http://www.pc1ha.franken.de/habel/musik_03.htm <http://www.pc1ha.franken.de/habel/musik_03.htm>
> 
> Best,
> 
>  René
> 
> 
> 
> BestJürk Habel und Dieter Do
> 
> epfer, MIDI-Interface für Oldtimer, Funkschau Hefte 9/89, 10/89 und 11/89, Franzis-Verlag, München
> 
> Am 28.09.2022 um 12:36 schrieb Mike Bryant:
>> Maybe the original design on the etched PCB was a general purpose MIDI board (hence the matching firmware) and provided an 8 bit GPIO port, but disobeyed the rules and omitted the opto-isolator, so whoever used it added that as well as the DAC they needed for this design on the perfboard. 
>>  
>> From: Synth-diy [mailto:synth-diy-bounces at synth-diy.org <mailto:synth-diy-bounces at synth-diy.org>] On Behalf Of René Schmitz
>> Sent: 28 September 2022 11:29
>> To: synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>
>> Subject: Re: [sdiy] Identification of an unknown MIDI CV interface
>>  
>> Hi all,
>>  
>> On 28.09.2022 11:30, Ingo Debus via Synth-diy wrote:
>>  
>>  
>> https://florian-anwander.de/moog_prodigy/Unknown_Midi_Interface.jpg <https://florian-anwander.de/moog_prodigy/Unknown_Midi_Interface.jpg>
>>  
>> The etched PCB looks like a general purpose board. The MIDI stuff and the DAC are on the perf board.
>> That's what I was thinking too, but what is interesting is that the logo on the EPROM matches the one on the board.
>> 
>> So Hardware and Firmware seem to be from the same origin.
>> 
>> But the rest seems very bespoke and has a high home brew appeal.  This doesn't quite fit to me, because who
>> 
>> ever wrote the firmware would know what hardware to drive.
>> 
>>  
>> 
>>  
>> 
>> Best,
>> 
>>  René
>> 
>>  
>> 
>> --
>> synth at schmitzbits.de <mailto:synth at schmitzbits.de>
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