For a powerful sound output, you can use one of the many output stages suggested in previous projects. Also, you can drive powerful lamps with power output transistors.
A Darlington transistor such as the TIP115 can drive incandescent lamps up to 1 A.
The device can be used as a component of alarms or games, in cars, and for Various other applications. Of course, the experimental version will teach you about this kind of circuit.
A schematic diagram of the Flasher with Beeper is shown in Fig. 1..
Figure 1 – Aschematic diagram of the Flasher
The tone and flash rate can be altered by changing the Values of C1 and C2. Perform experiments according What you intend to do with the device whether it is used in applications other than the suggested ones.
IC1- 4093 CMOS integrated circuit
LED1 -l Red, green, or yellow common LED
X1 - Piezoelectric transducer or crystal earphone
R1 - 2,200,000 Ω - potentiometer
R2 - 100,000 Ω, 1/4 W, 5% resistor
R3 - 100,000 Ω - potentiometer
R4 - 10,000 Ω, 1/4 W, 5% resistor
C1 – 0.22 µF or 0.47 µF - ceramic or metal film capacitor
C2 - 0.022 µF ceramic or metal film capacitor
C3 - 100 µF, 16 WVDC electrolytic capacitor
