Description. The ICL8038 is a function generator chip, able of generating triangular, square , sine, pulse and sawtooth waveforms . Fr...
LED based transistor tester
Description. Here is the circuit of a very simple transistor tester which used two LEDs for displaying the condition of a transistor. Bot...
Scoring game circuit
Description. A simple scoring game circuit that can be used for all occasions when a dice is needed.The circuit is based on a NE555 time...
Digital code lock
Description. This is a simple but effective code lock circuit that has an automatic reset facility. The circuit is made around the dual fl...
FM Radio jammer
Description. Circuit shown here can be used to jam FM radios in its vicinity. The circuit is nothing but a classic single transistor oscil...
Combination Lock
D-type bistables can easily be used to make a combination lock . Using two 4013 integrated circuits, you can make a 4-digit combination loc...
Infra Red Remote Control Tester
The circuit is very effective to test the remote controls what still works or not, the remote record will be tested using infra red. Example...