To begin with, this article for Simple Adjustable Oscillator Circuit using Two Transistors show how to make small sound circuit using only two transistors! Hence, when we turn the knob the sound goes high like beep or low like growl, also we can use four AA battery or small wall power to run this circuit. […]
Simple Car Fused Tail Lamp Indicator Circuit
Simple Car Fused Tail Lamp Indicator Circuit tell how to make one easy circuit for checking car back lights are ON or not. Also, it uses one common part called resistor to know if light are getting enough power and if light goes OFF the circuit gives an alarm to show problem. Moreover, this thing […]
Crystal Tester Circuit
Did anyone ever think how quartz watch or radio keep time so good? the answer is it uses one special thing called crystal oscillator. Also, this post for Crystal Tester Circuit show how to make small tester to check if crystal is working or not. Tester are made with simple parts like transistor, resistor and […]
Simple Delay Timer Circuit
This article tell how to use simple parts like transistor, capacitor and diode to make Simple Delay Timer Circuit. Also, this timer can wait some time like few seconds or minutes before turning something ON. Hence, many circuits need this kind of delay timer to ensure operations happen in the correct order. What is a […]
Latch Circuit using Transistors
This article for Latch Circuit using Transistors talk about how to make a small electric switch and this switch stay ON even after signal goes OFF. Also, it does not cost much and is easy to make, as it uses transistor and some other parts. If someone gives small signal to turn it ON it […]
Set Reset Latch Circuit using Transistors
This Set Reset Latch Circuit using Transistors tell us how to make an easy electric switch with two ON/OFF using two transistors. Also, many devices are used in special switching circuits like an SR latch to keep data even when the power turns OFF and then ON again. Furthermore, this type of circuit mostly uses […]