•  
  •  

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


TOA Speaker Impedance Meter Tester Type ZM-104 with Cables Genuine US Seller picture

TOA Speaker Impedance Meter Tester Type ZM-104 with Cables Genuine US Seller

$249.99



Electro-Metrics Line Impedance Stabilization Network (LISN) model 7820 10Khz - 3 picture

Electro-Metrics Line Impedance Stabilization Network (LISN) model 7820 10Khz - 3

$995.00



֎ Agilent 4291B RF Impedance Analyzer w/options 001, 002, 012, and 1D5  GREAT  ֎ picture

֎ Agilent 4291B RF Impedance Analyzer w/options 001, 002, 012, and 1D5 GREAT ֎

$4750.00



5x Panasonic FC 47uF 50v low ESR radial Capacitors caps 105C New low impedance picture

5x Panasonic FC 47uF 50v low ESR radial Capacitors caps 105C New low impedance

$1.69



GenRad 1657 RLC Digibridge 120Hz/1kHz Series/Parallel Digital Impedance Meter picture

GenRad 1657 RLC Digibridge 120Hz/1kHz Series/Parallel Digital Impedance Meter

$109.99