I think the pitch bend can work only UPwards.
There is a knob inside rotating from 0 Ohm and up to 23Ohm. A spring gets the knob always to 0.

Hey guys, I have been working on some interesting project recently trying to recreate famous Roland MGS-1 grip for even more famous SH101. They all work with the keytar as the original one having modulation switch and bender knob. It was not so easy to make one without having original grip at hand. ...

Here is a pair of my recreation and the original power supply which came from the USA recently. Mine is like a big brother but looks quite similar. Next step is building a mould for the sidepanels, I need to find a way to recreate the ruuber black panels so I can copy more of the stuff. https://scon...

The recreation of Roland Axis-1 Power Supply is almost finished. The one is extremely hard to to find anywhere. I haven't seen the one alone without the keytar. On the other hand there are lots of keytars without the box. Almost complete. I wait for logos and the side panels to dry. My version is ha...

I have made the circuit and turned it on. So far so good. Stabilised Voltage 10+ appeared where it should be. I have to buy some LED's still. I painted the housing and I am going to order labels for Roland Axis designations. It then will look very similar to the original. Details are on my webpage: ...

Hi, Some years ago here at the forum some one wanted to build the Roland AXIS-1 powers supply. I wonder if he succeeded... I started to build my own power supply as my Axis -1 will arrive soon from the USA without it, unfortunately. I assume it will cost me around 50USD as for materials. Lots of tim...

Hi, I started to build my own power supply as my Axis -1 will arrive soon from the USA without it, unfortunately. I assume it will cost me around 50USD as for materials. I still haven't got the pedal switch for sustain. I am trying to get one though. You can see the whole story at my webpage http://...