This is Rare, Original, Vintage
IC, SSM2300
Voltage-Controlled 8-Channel Multiplexed Sample&Hold Chip 
for
Ensoniq ESQ-1 SQ-80 E-MU EMax-1 
Oberheim DPX-1 Akai VX600
and Many Other Vintage Analog Synthesizers.
Used. Tested and Works Great !


If you have any questions Please e-mail me.