| Part | ST3938B |
|---|---|
| Description | SPEECH - TONE/PULSE DIALER - LED INDICATOR |
| Manufacturer | STMicroelectronics |
| Size | 206.81 KB |
The device consists of the speech and the dialer functions. It provides the DC line interface circuit that terminates the telephone line, analog amplifier for speech transmission and necessary signals for either DTMF and pulse dialing.
| Part Number | Manufacturer | Description |
|---|---|---|
| B-5855S | Burroughs | Numerical Indicator Tube |
| B-5856 | Burroughs | Indicator Tube |
| B-5855 | Burroughs | Numerical Indicator Tube |