Intercoms
Circuit / Schematic diagram of | Description |
|
8 Line intercom using ATMEL AT89c51 microcontroller |
Full-duplex Intercom | Two intercom system without an operator |
Door Phone Intercom | |
Head set Intercom | |
High Quality Intercom | |
Intercom | Link includes schematic only |
Telephone based Intercom-1 | Simple circuit which converts your old phone to intercom system |
Telephone based Intercom-2 | |
InterCommunication | |
Transistorized Intercom | Transistor based and 3-stage resistor-capacitor coupled amplifier |