OrganDonor is a universal midi interface for electronic organs, string machines and polyphonic synthesizers. It can be used to midify machines where other approaches fail. OrganDonor uses analogue switches to directly simulate keyboard presses. A large voltage range of up to +-20V allows interfacing even the most vintage machines.
In addition, parameters such as filter cutoff, glide or preset selection switches can often be interfaced as well.
The modular approach lets you add as many analogue switches as needed. This allows even large polyphonic synthesizers or organs with several manuals to be interfaced.

Customization

We offer OrganDonor as customized versions for particular synthesizers. We are working on expanding the portfolio and creating more installation manuals. Contact us if your synth is not on the list yet, or if you want OrganDonor installed in your synth by us.

Additionally, the behaviour of OrganDonor is fully customizable via the OrganDonor configurator. This is a browser based tool that allows you to create midi assignments to analogue switches, digital outputs, PWM outputs and CV/Gate output (special OrganDonor version needed for CV-out). User manual here.

List of machines and Installation manuals

Click on a Link to get to the specific installation manual. If there is no link, we think OrganDonor will work with this machine, but were not able to try it yet.
Your synth is not on the list at all? Contact us!

Korg

Korg PE-1000
Korg PE-2000
Korg Lamda ES-50
Korg Delta DL-50 (Handled by Lalaland Kit)
Korg VC-10

Roland

Roland RS-09
Roland RS-101
Roland RS-202
Roland RS-505
Roland VP-330
Roland VK-1

Yamaha

Yamaha SK-10
Yamaha SS-30

Yamaha SK-15 (covered by TM62100)
Yamaha SK-20 (covered by TM62100)
Yamaha SK-30 (covered by TM62100)
Yamaha SK-50D (covered by TM62100)

ARP

ARP / Eminent Solina String Ensemble
Arp Solina String Synthesizer(manual incoming)
Arp Omni
Arp Quartet

Elka

Elka Rhapsody 490
ELKA Rhapsody 610
ELKA Solist 505

Moog

Moog Opus 3
Moog Polymoog (not supported due to SPDT key contacts)

Crumar

Crumar Performer
Multiman (not supported due to SPDT key contacts)

Hohner

Hohner/Logan String Melody
Hohner Stringer /Elka K4 / Elex K4
Hohner Basset (Uses normally closed switches, can only be controlled when removing the original keyboard)

Vermona

Vermona Strings
Vermona Piano Strings

Siel
Siel Orchestra
Siel Orchestra 2