MSM6242B Integrated Circuit - DIP18 - OKI Semiconductor

LB1740 Integrated Circuit - DIP18 - Sanyo Semiconductor

HA12044 Integrated Circuit - DIP18 - Harris Semiconductor

LB1291 Integrated Circuit - DIP18 - Sanyo Semiconductor

LB1257 Integrated Circuit - DIP18 - Sanyo Semiconductor

LB1241 Integrated Circuit - DIP18 - Sanyo Semiconductor

LB1255 Integrated Circuit - DIP18 - Sanyo Semiconductor

LB1262 Integrated Circuit - DIP18 - Sanyo Semiconductor