Bells ring Generator


Posted on Nov 2, 2012

Three circuit options Can be synchronized to Christmas tree flashing lights This circuit generates a dual-tone bells ringing similar to most door-bell units. It can be used in many applications other than door-bell. In the Notes below several options will be given in order to suit different needs.


Bells ring Generator
Click here to download the full size of the above Circuit.

The circuit as shown in the diagram generates a "Ding-tone" when P1 is pressed and a "Dong-tone" when P1 is released. IC1D is the first-tone frequency generator and IC1F generates the second-tone. Q2, Q5 and related components act as




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Digital Car Voltage Meter
30MHz 500 watt linear tube amplifier
Video-dc-restorer
IC 723 TIP41 Laboratory Power Supply Variable voltage
homemade Geiger counter with UGP interface
ne555 police siren circuit
Digital thermometer circuit based on CA3162 CA3162 and LM35
Proximity Sensor-based Remote Control Remote Control Demonstrator Board
Clock Circuit Design
Drag dedicated traffic control system



Top