Elektra © 1981 Bally.
Bally MPU AS-2518-35 (Squawk and Talk)
Model Number : 1248
Main CPU : M6800 (@ 475 KHz)
Sound CPU : M6802 (@ 895 KHz)
Sound chips : General Instrument AY8910 (@ 895 KHz), DAC, Texas Instruments TMS5220 (@ 640 KHz)
Released in December 1981, Elektra was the first three-level play-field pinball. 2,950 units were produced.
The development of this game taked 9 months.