•  
  •  

Big Ben Sound

This circuit produces the famous Big Ben sound. It produces the “ding dong” sound when switched ON.
Basically the circuit alternates between two frequencies which are adjustable. This produces the “ding-dong” sound.
The first IC(left) oscillates at about 1Hz. The second IC’s tone is modulated by the changing voltage at the output of the first IC.

The first IC determines how fast the changeover from one frequency to the other takes place and second IC determines the tone of the final output.
By varying the VR1, the changeover rate can be adjusted. By varying VR2 the tone can be adjusted.

If there are any problems please contact webmaster@electronic-circuits-diagrams.com

Please share & like

100Pcs Tactile Switches Set 4-Pins Accessories Kit Replacement Portable
$8.56 100Pcs Tactile Switches Set 4-Pins Accessories Kit Replacement Portable picture
Digital Thermostat Temperature Control Thermo Controller Switch Modu BRPJ
$2.77 Digital Thermostat Temperature Control Thermo Controller Switch Modu BRPJ picture
Nilight 90014E Heavy Duty Rocker Toggle Switch 12V 20A Red Cover SPST ON/Off Car
$11.36 Nilight 90014E Heavy Duty Rocker Toggle Switch 12V 20A Red Cover SPST ON/Off Car picture
30 Amp 3 Pole Fusible Nema 3R General Duty Safety Switch
$280.63 30 Amp 3 Pole Fusible Nema 3R General Duty Safety Switch picture
LARBI Ignition Starter Switch With 3 Position 3 Connection Terminal 2 keys for
$12.2 LARBI Ignition Starter Switch With 3 Position 3 Connection Terminal 2 keys for picture