Jellinghaus DX Programmer for Yamaha DX-7

via this auction

"This has a dedicated knob for all sound programming destinations and makes programming so much easier on the DX.

Of course it has Midi In, Out and Thru.

Also works for the TX-7 and TX816. Probably working with others as well, but not tested by me.

Works fine and is in great condition. The lower wooden panel could be renewed as its a bit worn and actually quite thin.
The knobs all work and keep in mind that the DX-7 was never very quick with it's Sysex control ;-)

It's even bigger than the DX-7 itself and looks great with it
shiny blue that is more like a PPG synth than Yamaha !

This must be one of the biggest controllers ever."