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Korg Monotribe modifications thread
MUFF WIGGLER Forum Index -> General Gear Goto page Previous  1, 2, 3 ... 37, 38, 39 [all]
Author Korg Monotribe modifications thread
sixart
Hello all! About to embark on my first modding journey thanks to your shared wisdom here. I wanted to add that I used a CTIA<->OMTP adapter to connect a TRRS headset splitter into the Monotribe for MIDI control. It was what I needed to connect with CV on the second ring of the TRRS.
zaphod betamax
Has anyone build a DIY MIDI OUT (only) for their monotribe?
In theory this would act as a CV(Hz/V) S_trig to MIDI adapter when connected to an MS-20???
shurikenyo
How about VCF...can we control the filter cutoff with CV from a eurorack LFO or ENV? Or will the monotribe blow up? internal power rail is 5V right...wonder if it can handle +-12V hmmm.....
zaphod betamax
Does anyone know where to get that little 5 pin? cable that connects
with the serial port on the Monotribe. I want to fab my own MIDI OUT (only)
and want to keep my DIY work as neat as possible.
zaphod betamax
Internal to the VCF is +3.3V, you would have to attenuate whatever signal.
Try tapping a signal into the wiper on the cutoff pot. Can't say how the Monotribe would react. Probably have to crowbar the signal so it does not exceed 3.3V.

shurikenyo wrote:
How about VCF...can we control the filter cutoff with CV from a eurorack LFO or ENV? Or will the monotribe blow up? internal power rail is 5V right...wonder if it can handle +-12V hmmm.....
CeeJay
zaphod betamax wrote:
Does anyone know where to get that little 5 pin? cable that connects
with the serial port on the Monotribe. I want to fab my own MIDI OUT (only)
and want to keep my DIY work as neat as possible.


Do you mean the 6 pin connector?
You need a JST PHR-6 2mm connector housing like this:
https://www.conrad.de/de/buchsengehaeuse-kabel-phr-jst-phr-6-rastermas s-2-mm-1-st-740728.html

And the matching crimp contacts or ready made crimped cables like this:
https://www.conrad.de/de/litze-gecrimpt-serie-ph-200-mm-808935-jst-748 475.html

Sorry, I have only the links to a german ekectronic shop, since I bought mine there.

For MIDI out you need only 3 cables and it's probably much easier to solder directly to the underside of the 6 pin serial connector.
zaphod betamax
I've also been told a PS2 mouse contains the same connector.
Have not been able to confirm this.
bitflip
zaphod betamax wrote:
Does anyone know where to get that little 5 pin? cable that connects
with the serial port on the Monotribe. I want to fab my own MIDI OUT (only)
and want to keep my DIY work as neat as possible.


This is the one i got - it fits perfect:

https://www.sparkfun.com/products/10361
zaphod betamax
Thanks! I realize now it is a 6 pin JST plug, I have been able ot find it on amazon.ca and mouse.ca.




bitflip wrote:
zaphod betamax wrote:
Does anyone know where to get that little 5 pin? cable that connects
with the serial port on the Monotribe. I want to fab my own MIDI OUT (only)
and want to keep my DIY work as neat as possible.


This is the one i got - it fits perfect:

https://www.sparkfun.com/products/10361
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