Tyme Sefari Expander

The Tyme Sefari is expandable with a series of switches for “circuit bending” the behavior of the module, model 1973A “sound of thunder”. These switches short out parts of the data and address busses, resulting in effects just like a modified Casio SK-1. The glue logic within the Tyme Sefari is laid out in a similar way to the SK-1, so the changes in sound are quite similar. However, the front-panel operation of Tyme Sefari remains predictable when the expansion is active.

Sound of Thunder expansion:
passive (causes base unit to draw up to 60mA more current)
Panel size: 3HP