This article is for 50Hz Square Wave Generator Circuit using Transistors. Two transistors switch ON and OFF one by one. Outputs blink opposite time. No IC is used only simple parts are required. We can change resistor or capacitor to change speed. This circuit is good to learn basic oscillator working. Circuit Working: Parts List: […]
Oscillator Circuits
Audio Oscillator Organ Circuit
This article is about small Audio Oscillator Organ Circuit, we can hold in our hand. It plays simple notes and make funny tones. It uses very simple parts and shows how oscillator make sound. And also shows how amplifier make sound big. It works on low voltage which is safe for kids. It gives a […]
Learn the Basics of Analog Circuits
Analog circuit is heart of electronics. It works with continuous signals, not digital ON/OFF. Everyday devices use radios, amplifiers, sensors and more. Simple analog circuit helps us understand how signal change with time. This article, Learn the Basics of Analog Circuits is good for beginners. Working of Analog Circuit: Circuit Parts used in for Analog […]
Single Transistor Theremin Oscillator Circuit
Theremin is one very old electronic music instrument. It make strange space type sound without touching any part. Human hand move near antenna or plate and the pitch of sound changes. This happen because hand change the capacitance value near the circuit. In this article we will show very small and Single Transistor Theremin Oscillator […]
555 IC Based Schmitt Trigger Circuit
555 IC Based Schmitt Trigger Circuit is a small project. It work like comparator and comparator is ON/OFF when input cross the voltage. Noise make output jump and Schmitt Trigger stop this. It have 2 limit: high and low. Input goes high then output is ON. Input goes low then output is OFF. Between them […]
Simple Adjustable Frequency Square Wave Generator Circuit
Simple Adjustable Frequency Square Wave Generator Circuit is easy and flexible. It is used in signal processing, modulation and in many projects. Here we see variable frequency oscillator using 555 timer IC which makes square waves and where user can change frequency. 555 works in astable mode and turning potentiometer changes output speed. Circuit is […]