Think like music conductor who tell each instrument when to play. In a speaker system, a Simple Passive Crossover Network Circuit for Loudspeakers does the same thing but with sound. Also, normal speakers consist of many parts, with each part handling a different sound range, rather than just one component. Woofer make big boom sound, […]
Hobby Circuits
Heads or Tails Decision Maker Circuit
To begin with, this easy Heads or Tails Decision Maker Circuit show how to make fun coin flipper using electric, for example like when we flip real coin but here we press a button and small chip inside do fast thinking and then say “heads” or “tails” very quickly The circuit also uses logic parts […]
Simple Musical Doorbell Circuit using IC UM66
Do anyone want a special doorbell? not just make buzzing sound but this one plays small music tune as well! The Simple Musical Doorbell Circuit using the UM66 IC is very easy to build and requires only a few components,. However, the main part of this circuit is a special chip called the UM66T, which […]
Simple Electronic Fishing Lure Circuit
This article for Simple Electronic Fishing Lure Circuit shows how to make electric fishing lure; which uses small buzzer to make sound when fish come. Also, this circuit is easy to make and works very well; but however, fishing rules vary from place to place, so before using an electric lure, check whether your country […]
Simple Lie Detector Circuit using Transistors
Have fun making this Simple Lie Detector Circuit using Transistors. Real lie detectors are very hard and complicated so this one is not perfect; but it is fun way to see how body react when its in stress. Also, this circuit works by detecting changes in sweat to check whether someone may be telling the […]
Simple RF Sensor without Battery Circuit
This article for Simple RF Sensor without Battery Circuit show how to make small tester with no battery, also it help to check if radio transmitter is working or not. Moreover, the tester receives power from radio waves sent by the transmitter and if the transmitter works properly, the LED light blinks to indicate it. […]