•  
  •  

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

HARDWICK HINDLE H-80 25att 300 volt insulated Rheostat Potentiometer
$8.26  HARDWICK HINDLE H-80 25att 300 volt insulated Rheostat Potentiometer  picture
1xR204B1-M4 10KJoystick Potentiometer 5K 10K ohm 2-axis Sealed PTZThermistor
$12.64 1xR204B1-M4 10KJoystick Potentiometer 5K 10K ohm 2-axis Sealed PTZThermistor picture
Beckman Helipot Dual Precision Potentiometer 10k & 1k 7233-119-3 Pot
$29.99  Beckman Helipot Dual Precision Potentiometer 10k & 1k 7233-119-3 Pot picture
Lot of Pot Potentiometer multi 10 1 turn used
$39.0 Lot of Pot Potentiometer multi 10 1 turn used picture
Potentiometer 10K B1 P.E.C F88087-0000 D-Slot Shaft - NOS Qty 6
$19.99 Potentiometer 10K B1 P.E.C F88087-0000 D-Slot Shaft - NOS Qty 6  picture