Electronics Telephone Talking Circuit
Telephone circuits

Electronics Telephone Talking Circuit

By internum


This is the basis of electronics telephone sets.

Electronics Telephone Talking Circuit
Electronics Telephone Talking Circuit

You can use it to replace the talking circuit of an old telephone set with new design, better noise rejection and reliability one. Also you can use it to build a telephone set without dial circuit to answer a call.

2909 22 August 2007

See also:

Telephone Audio Interface
Audio from a telephone line can be obtained using a transformer and capacitor to isolate the line from external equipment.
Telephone Ring Generator Using Switching Supply
The telephone ring generator shown below generates the needed high voltage from a simple switching mode power supply.
9-Line Telephone Sharer
This circuit is able to handle nine independent telephones (using a single telephone line pair) located at nine different locations.

Search