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A Modular synth (called "2", because the effect synth was number 1)
This modular synthesizer is an open system which is thought to grow constantly.
it consists of 100 cm x 50 cm x 30 cm Racks, each with 5 Frontplates, filles with modules.
There is also a Serge-like lower cabinet with frequently used modules, like trigger sequencers
joystick, switches and so on.
Here are all the modules of the MOD2, together on there Faceplates. If there are related
schematics or PCB's, you will find the link "Schemo" below the Picture. "Schemo" is a link to the corresponding site, containing more information.
The 4 ADSR's are ASM1-Modules. I found a PCB in the net, the design is from Anders Sponton. There were some bugs in the layout, you will find the
corrected version below. If someone is offended by the link to the PCB, please let me know, I will remove it. The trigger delay is a modified Doepfer A162.
Theres nothing much to say here. These are 6 SSM-Chips from a dead Korg Polysix. You also can see 2 Mixers on the right side.
A diode ladder filter. This is a +/- 15 V version. The waveshaper is from the new Formant Pro. no schematic, no PCB : please buy the book !
The well known Formant 12 dB multimode filter and 6/12/18/24 dB HP/LP-Filter.
This is a modded MCV8 from Doepfer. I built all Switches and jacks to the front, much easier to handle !
Here you see, together on 30 cm x 50 cm, 3 LFO's, 2 Sample and Holds, 4 Mixers, 2 Voltage controlled switches, 3 Attenuators, white and pink noise and multiples.
Here we have the Formant Pro MOOG-transistor ladder filter. The MS20 High- and Lowpass filter is a modified KORG MS20-Filter from Rene Schmitz. Instead of one 13600 two CA3080 are used. I designed a PCB for this filter, which can be used both for HP and LP. Information about the Digital ringmodulator can be found
Another excellent design of Rene Schmitz. This is a link to his
, please choose "VCO's" and then "VCO4". This VCO goes from lowest LFO-frequencies (Minutes per cycle) to highest values (ultrasonic) with absolutely stable curves.
The Korg PS3100 is a famous resonator, built up with 4 Sallen-Key band pass filters. As you
can see, it's not ready.
The 2 formant modules are built straight forward.
3 8-Step sequencers and 2 Triggersequencers running parallel.
One of my first modules. Actually, the faceplate is identical to that of the burried triggerbox.
The digital noise is a modded Doepfer A117. The R-Envelope does nothing else but a release envelope. The release time can be between 0 and 5 seconds.
6 modded Doepfer VCA's (linear)
The Korg Polysix does not only contain ADSR-SSM-Chips, but also 12dB-Lowpass-SSM's ;-)
The VC-LFO and the VCA are (old)Formant modules. The ASM1-VCA is also from Anders Sponton, here too, a corrected version.
Heavily modified Doepfer VCO's (The original heater tends to oscillate wildly an is not so easy to handle. Here I used another heater-circuit).
Both, wheels and joystick are working with the same simple schematic.