Odyssey Mk I (Model 2800)
First came the Odyssey Mk I (Model 2800) produced between 1972-75. These used a smooth but tinnysounding 2-pole voltage-controlled filter design (model 4023) similar to those used in the Oberheim SEMmodules. From 1972 to 74 the Odyssey was produced with a white-faced front panel with black lettering. During 1974 to 75 they switched to a redesigned black front panel with gold lettering. However, all Mk I's can be identified by the rotary knob they use for pitch bending. None had any interface jacks, but a factory modification was available to add interface jacks as well as a PPC pitch bender in place of the rotary knob.