This manual describes how to install our OrganDonor midi interface in Oberheim 4 voice and 8 voice synthesizers.
You can purchase the kit here: Shop: Organ Donor
Picture derivative work:
Robert Brook, CC BY 2.0 <https://creativecommons.org/licenses/by/2.0>, via Wikimedia Commons
The installation guide can be downloaded as PDF here
The config file for OrganDonor is here
This manual shows how to install uniPulse in a Korg Mini Pops 45 and trigger all 10 instruments via Midi.
The installation is fairly simple and only requires soldering a few wires and parts into place, as well as drilling a hole for the midi socket.
Here we see the 10 trigger points for the various instruments. These are trigger outputs P1-P10 from uniPulse directly soldered to the trigger points.
In order to power the uniPulse you just need to solder the brown (V+) and red (GND) wires to the electrolytic capacitor shown in the picture.
Installing the midi socket is simple. A drill guide is included in the kit. Any location is fine, we chose to install the socket next to the audio sockets.
After installing uniPulse, turn on the machine and make sure the LED on the uniPulse is turned on. This means it has power and is running.
Connect midi and use the config tool to upload the following configuration.
Config file (right click, save as)
have fun!
The Opus 3 version of organDonor offers the following features:
The installation is relatively simple, but does require basic soldering skills. You will need to drill a hole for the midi socket.
Installation instructions can be found in this PDF.
If the optional learn button is installed, it can be used to quickly change the midi receive channel of organDonor.
Connect midi out of a computer or keyboard to midi in of organDonor. Make sure not to send any notes.
Press the learn button and while it is pressed send a midi note on any midi channel. organDonor will set this note as the lowest note of the synthesizer and use its midi channel. These settings are saved.
Send midi notes on the configured midi channel (see above)
Alternatively you may configure a lot of parameters using our organDonor configurator.
We recommend using the Moog Opus 3 config file as starting point
1.) Save the file on your hard drive via right click -> save as
2.) in the configurator press “Load configuration” and select the file
When retrofitting midi to old gear using our kits, often holes for the midi sockets need to be drilled. This guide is how we do it and shows a clean, easy way using a hole punch.
Stuff you need:
3. Remove drill aid
4. Drill 2mm pilot holes
5. Use 3.2mm drill
6. Use 4mm drill
7. Use 6mm drill
8. Use 8mm drill
9. Insert screw and skirt of the screw hole-punch
10.Attach the cutting part of the screw hole-punch
11.Use the box wrench, clockwise
12. Result
13. Install MIDI jack
That’s all. Have fun.
The Siel Orchestra version of OrganDonor offers the following features:
The installation is relatively simple, but does require basic soldering skills. You will need to drill a hole for the midi socket.
Installation instructions can be found in this PDF.
If the optional learn button is installed, it can be used to quickly change the midi receive channel of organDonor.
Connect midi out of a computer or keyboard to midi in of organDonor. Make sure not to send any notes.
Press the learn button and while it is pressed send a midi note on any midi channel. organDonor will set this note as the lowest note of the synthesizer and use its midi channel. These settings are saved.
Send midi notes on the configured midi channel (see above)
By default, the channel is midi channel 1
Alternatively you may configure a lot of parameters using our organDonor configurator.
We recommend using the Siel Orchestra config file as starting point
1.) Save the file on your hard drive via right click -> save as
2.) in the configurator press “Load configuration” and select the file
The Korg Delta version of OrganDonor offers the following features:
The installation is relatively simple, but does require basic soldering skills. You will need to drill a hole for the midi socket.
Installation instructions can be found in this PDF.
If the optional learn button is installed, it can be used to quickly change the midi receive channel of organDonor.
Connect midi out of a computer or keyboard to midi in of organDonor. Make sure not to send any notes.
Press the learn button and while it is pressed send a midi note on any midi channel. organDonor will set this note as the lowest note of the synthesizer and use its midi channel. These settings are saved.
Send midi notes on the configured midi channel (see above)
By default, this is midi channel 1.
Alternatively you may configure a lot of parameters using our organDonor configurator.
We recommend using the Korg Delta config file as starting point
1.) Save the file on your hard drive via right click -> save as
2.) in the configurator press “Load configuration” and select the file
The Roland RS-505 version of OrganDonor offers the following features:
The installation is relatively simple, but does require basic soldering skills. You will need to drill a hole for the midi socket.
Installation instructions can be found in this PDF.
If the optional learn button is installed, it can be used to quickly change the midi receive channel of organDonor.
Connect midi out of a computer or keyboard to midi in of organDonor. Make sure not to send any notes.
Press the learn button and while it is pressed send a midi note on any midi channel. organDonor will set this note as the lowest note of the synthesizer and use its midi channel. These settings are saved.
Send midi notes on the configured midi channel (see above)
By default, the synthesizer section is on midi channel 1, the bass section on channel 2.
Alternatively you may configure a lot of parameters using our organDonor configurator.
We recommend using the Roland RS-505 config file as starting point
1.) Save the file on your hard drive via right click -> save as
2.) in the configurator press “Load configuration” and select the file
The Roland RS-09 version of OrganDonor offers the following features:
The installation is relatively simple, but does require basic soldering skills. You will need to drill a hole for the midi socket.
Installation instructions can be found in this PDF.
If the optional learn button is installed, it can be used to quickly change the midi receive channel of organDonor.
Connect midi out of a computer or keyboard to midi in of organDonor. Make sure not to send any notes.
Press the learn button and while it is pressed send a midi note on any midi channel. organDonor will set this note as the lowest note of the synthesizer and use its midi channel. These settings are saved.
Send midi notes on the configured midi channel (see above)
Alternatively you may configure a lot of parameters using our organDonor configurator.
We recommend using the Roland RS-09 config file as starting point
1.) Save the file on your hard drive via right click -> save as
2.) in the configurator press “Load configuration” and select the file
The Crumar Performer version of OrganDonor offers the following features:
The installation is relatively simple, but does require basic soldering skills. You will need to drill a hole for the midi socket.
Installation instructions can be found in this PDF.
If the optional learn button is installed, it can be used to quickly change the midi receive channel of organDonor.
Connect midi out of a computer or keyboard to midi in of organDonor. Make sure not to send any notes.
Press the learn button and while it is pressed send a midi note on any midi channel. organDonor will set this note as the lowest note of the synthesizer and use its midi channel. These settings are saved.
Send midi notes on the configured midi channel (see above)
Alternatively you may configure a lot of parameters using our organDonor configurator.
We recommend using the Crumar Performer config file as starting point
1.) Save the file on your hard drive via right click -> save as
2.) in the configurator press “Load configuration” and select the file
We have not had the chance yet to build our OrganDonor midi interface into a RS-101. However, we did install one in a RS-202 and – according to the schematics and a single picture found on the web – they seem to be identical when it comes to the tone generator/gate board.
This means it should be relatively straight forward to use the RS-202 installation manual and apply it to the RS-101.
If you want to try, we will of course assist. You can also contact us and send some pictures of the inside of your RS-101. We’ll be happy to help.