Bally MPU AS-2518-35
Model Number : 1217

Main CPU : M6800 (@ 475 KHz)
Sound CPU : M6802 (@ 895 KHz)
Sound chips : General Instrument AY8910 (@ 895 KHz)

Released in November 1980. 1,850 units were produced.

The development took 6 months (started in May 1980).