Metronome with CA741


Posted on May 23, 2012

This circuit uses a couple of Op-amps to produce an interesting sound effect. The left hand CA741 is wired as a standard astable and produces the timing pulses, controlled by C1, R2 and VR1. The output is fed via C2 to the second op-amp and is also direct coupled via the zener ZD1 to Q1. The right hand CA741 is configured as an integrator, its purpose being to distort the output pulse from the first op-amp.


Metronome with CA741
Click here to download the full size of the above Circuit.

This produces a ringing effect on the output pulse and gives the circuit a characteristic "tick" sound. The output pulse at the first op-amp will cause the zener and Q1 to conduct on every positive transition. The 1k resistor R8 then acts as a




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Sound-activated-switch
Battery-Saving Disconnect Switch
Transmitter Precision Thermocouple Amplifier Circuit
Another RF Field Strength Meter
Electronic Voltmeter Ammeter Circuit Using Single IC 741
The simple solar energy of adaptation supplies power the control device of the street lamp designs and realizes
building a gps logger
preamp
Citation I and IV phono schematic query
Motorola MaxTrac Radius and GM300 Series Introductory Information
LONG PERIOD TIMER
300A-18V three-phase thyristor power regulator circuit for electrolysis



Top