| NTE Part No. |
Package Type | Description |
| 1648 $3.09 |
8-Lead DIP | Telephone Ringer |
| 1649 $3.39 |
8-Lead DIP | Telephone Ringer |
| 1690 $12.54 |
16-Lead DIP | CMOS, Telephone Dual Tone Multi-Frequency Dialer (DTMF) |
| 1691 $3.75 |
18-Lead DIP | Telephone Pulse Dialer (Vref) |
| 1692 $4.02 |
18-Lead DIP | Telephone Pulse Dialer (Tone Output) |
| 1693 $5.94 |
16-Lead DIP | CMOS, Telephone Pulse Dialer |
| 1731 $12.84 |
16-Lead DIP | CMOS, 10 Number Dialer |
For more info on parts go to NTE website