NTE166 thru NTE170 Single Phase Bridge Rectifier 2.
NTE1690 - Integrated Circuit Telephone DTMF Dialer
NTE1691 - Integrated Circuit Telephone Pulse Dialer
NTE1692 - Integrated Circuit Telephone Pulse Dialer
NTE1693 - Integrated Circuit Telephone Pulse Dialer
NTE169 - Single Phase Bridge Rectifier