In this post we will understand about a simple power amplifier circuit using AC176 and AC126 type PNP germanium transistor in OTL (output transformer less) design. Also, this circuit gives audio power directly to speaker without output transformer, it is low voltage circuit and works with 9V battery. Therefore, the circuit design is easy and […]
Hobby Circuits
Simple Drummer Sound Circuit using IC 555
Today electronic sound circuits are very popular among the young generation; hence, one such circuit which will benefit the beginners in electronic is a Simple Drummer Sound Circuit using IC 555. This circuit uses the IC 555 timer, which offers a low-cost, readily available solution for sound and timing projects, also its simple design makes […]
Transistor Based Water Level Alarm Circuit
Sometimes the water tank becomes full, but we forget to switch OFF the motor, as a result, the system wastes water; so, this simple Transistor Based Water Level Alarm Circuit is useful, as it gives sound alert when water reaches a level. Moreover, the circuit is cheap and easy to build as it uses very […]
Fan Start 10 Second Delay Timer Circuit
In many homes and industries sometimes a fan does not turn ON immediately, here, a fan start delay timer is a circuit that delays the fan start. When we apply power, the fan remains OFF for approximately 10 seconds and then turns ON automatically. Also, we can easily adjust the delay time if required. This […]
Transistor Based Coin Toss Game Circuit
Sometimes we need to make a quick decision but choosing is not easy, so we flip a coin; now imagine doing the same with electronics. This transistor-based coin toss game circuit works like a real coin toss and produces a random result every time, and when we apply power to the circuit, no one can […]
Transistor Based Bicycle Tail Light Flashing Circuit
This project presents a simple transistor based bicycle tail light flashing circuit; the circuit primarily functions as a bicycle tail light and operates from a low voltage battery, making it suitable for portable use. Moreover, the circuit uses very few components, because of this its easy to build and also, power consumption is low and […]