Telephone Circuits

NTE
Part No.
Package Type Description
1648 8-Lead DIP Telephone Ringer
1649 8-Lead DIP Telephone Ringer
1690 16-Lead DIP CMOS, Telephone Dual Tone Multi-Frequency Dialer (DTMF)
1691 18-Lead DIP Telephone Pulse Dialer (Vref)
1692 18-Lead DIP Telephone Pulse Dialer (Tone Output)
1693 16-Lead DIP CMOS, Telephone Pulse Dialer
1731 16-Lead DIP CMOS, 10 Number Dialer

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