TELEPHONE RING SIMULATOR CIRCUIT


Posted on Apr 9, 2012

This project has been specially designed to introduce you to SMD (Surface Mount Devices). Surface Mount is really not new. It started as far back as 1940 with a hybrid circuit in a digital watch. A chip was cemented onto a slab of ceramic material having gold tracks and film resistors. The LED display was mounted in a similar fashion and the whole assembly coated in epoxy to protect it before fitting into the watch case.


TELEPHONE RING SIMULATOR CIRCUIT
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Ham radio Communication
Audio Booster
ADV7123 Digital-to-Analog Converter Connection Diagram and Datasheet
Robot Trains in the Garden motor control circuit
Acceleration Monitor using ADXL202 and AVR
Armstrong Oscillator
Consisting of a plurality of parallel MOSFET high current output linear regulator circuit MIC5158
Video cable driven by the MAX4104 4105 4304 4305 s an enlarged schematic
Bridge motor drive circuit



Top