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The Korg MS-X, a Monotron transformed into a Korg MS10 !
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Author The Korg MS-X, a Monotron transformed into a Korg MS10 !
djsoulmachine
Hey!
We celebrate this year the 40th Anniversary of the legendary Korg MS10, I've therefore decided to build the MS-X, a Monotron extensively modified to pay tribute to its old ancestor!


Video :


Pictures :









Specs :

Voltage Controlled Oscillator (VCO):
- Scale: 32', 16', 8', 4'
- Waveforms: Triangle, Saw, Pulse (with VCPWM), VCO off
- Variable pitch control
- Glide control
- Sub Oscillator

Voltage Controlled low-pass Filter (VCF):
- Cutoff Frequency control
- Peak (Resonance) control
- Keyboard tracking switch

Voltage Control Amplifier (VCA):
- MS10 VCA clone
- Feedback loop

Modulation Generator (MG):
- Waveforms: Triangle, Saw & Square
- Frequency control
- Frequency modulation of VCO & VCF

Envelope Generator (EG):
- Attack, Decay, Sustain, Release
- Frequency modulation of VCO & VCF
- Amplitude modulation of VCA

Features:

- CV/gate
- Drone mode
- Manual gate trigger

As for the semi modular panel, it is a personal choice to live without wink

Enjoy!
abelovesfun
WOW!
Schematics for the other boards?
djsoulmachine
I plan to share the schematics but I need to shape them a little bit, they should be available before the end of September on my website : http://www.djsoulmachine.com

See you there wink
LSuveg1
Wow, amazing work! Such a cool project, and great video demo.
seepaxton
This is excellent! Fairplay
OIP
bravo, this is awesome. absolutely love the authentic panel styling too.
djsoulmachine
OIP wrote:
bravo, this is awesome. absolutely love the authentic panel styling too.


Yeah I spent a freaking bunch of hours on that panel Dead Banana
ashleym
Great work!!

Only half joking........is there room for someone to develop a double version MS-XX?
djsoulmachine
ashleym wrote:
Only half joking........is there room for someone to develop a double version MS-XX?


Yes, there's definitely room to develop a MS20 with two Monotrons!
I actually thought about it for a while but I stuck to the MS10 because I didn't have enough free time and patience to double all the circuits...
Plus, you'd need to really butcher the two Monotrons to make the 2 VCOs working together and convert one of the LP filter into a HP filter. screaming goo yo

But it's definitely doable! Rockin' Banana!
devinw1
Very cool and sweet ass demo video. Pink Floyd arpeggio FTW.
pix
we're not worthy
ashleym
djsoulmachine wrote:

Yes, there's definitely room to develop a MS20 with two Monotrons!
I actually thought about it for a while but I stuck to the MS10 because I didn't have enough free time and patience to double all the circuits...
Plus, you'd need to really butcher the two Monotrons to make the 2 VCOs working together and convert one of the LP filter into a HP filter. screaming goo yo

But it's definitely doable! Rockin' Banana!


Thinking aloud, we could compromise sync or filter details.

Still impressed Jedi
aabbcc
Wow, very impressive! Will you be offering the front panel?
OIP
djsoulmachine wrote:


Yeah I spent a freaking bunch of hours on that panel Dead Banana


haha, worth it! was thinking about something similar for a MS20 filter panel
djsoulmachine
aabbcc wrote:
Wow, very impressive! Will you be offering the front panel?


That's possible, yes Miley Cyrus
a100user
djsoulmachine wrote:
aabbcc wrote:
Wow, very impressive! Will you be offering the front panel?


That's possible, yes Miley Cyrus


Cool
autodafe
uber-cool !!!
autodafe
how the hell did you manage to control V/Oct so good? I have and "Euroracked" Montoron but it doesn't respond so good to CV Pitch control....
djsoulmachine
autodafe wrote:
how the hell did you manage to control V/Oct so good? I have and "Euroracked" Montoron but it doesn't respond so good to CV Pitch control....


That was a tricky part indeed!
I basically add an internal offset + gain adjustments before driving the VCO and then spent hours of calibration and fine tuning Dead Banana
djsoulmachine
The schematics of the Korg MSX are now available on my website!! nanners

http://www.djsoulmachine.com

Please read the instructions before butchering your Monotron and do not forget to send me pics and videos of your own project! thumbs up

LOVE,
Soul Machine // Far Beyond Perception
lud
That's incredible work! Sounds and looks fantastic, well done and great you're sharing the love
Jaytee
Solid work, sounds great (sometimes I get so infatuated with the creamy 24db filters that I forget how sweet a good 12db filter can sound).

More than anything though, seriously good work putting the documentation together. That’s not a step that often gets finished.
makhho
following this project!
djsoulmachine
Hi guys!
Because the Internet is fantastic, the schematics have already been updated by some users!
A BOM is now available and 2 minor mistakes have been corrected, so be sure to use the latest version!
pix
thanks so much for sharing this! Would it be too much to ask for your front panel vector file as well? .ai?

we're not worthy
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