Clack Clack Electronic Bell
This is a very simple electronic bell. Here the transistor TR-1 acts as a low frequency oscillator...
Circuits
Electronic Astrologer
This electronic astrologer answers in either YES or NO. For this reason it is a good idea to put this circuit...
Electronic Dice
When switch S1 is pushed momentarily and released, any one of the 6 LEDs will glow. It is good idea to put this circuit in a box and mark/write each LED with number 1 to 6....
Light Operated Switch
The circuit above shows a simple application of light operated switch. This circuit senses the ambience light and depending on....
Mini Tester
This is a very useful circuit which can be used for testing electronic component. Like multimeter one can use this circuit....