The Roland Juno-106 is a great instrument, but has a lot of empty space inside it. As much empty space in fact that it can quite easily be modified to half the size without sacrifying anything but the power supply. Here are my pictures and notes from the making of the Junior-106. Recently I've re-started my path towards creating a new OS for the Juno-106 and so far has achieved an interresting unison detune feature controlled from the portamento knob.