Magic Wand Conjuring Trick


Posted on Aug 23, 2012

The operation of the circuit is fairly simple. Three AND logic gates of a 4081 CMOS IC are employed, with gates IC1a to IC1c being configured as a standard cascaded latch circuit. S1 to S3 serve as reset switches. The output at pin 10 will only switch to logic high when reed switches S4 to S6 are closed in sequence. Power transistor TR1 amplifies the output current to light bulb LP1.


Magic Wand Conjuring Trick
Click here to download the full size of the above Circuit.

Instead of a wand, a small neobdymium (super-strength) magnet may be stuck to one finger, and one`s finger used in place of the wand. In "stand-by" mode (with the bulb extinguished) the circuit will use very little current. Therefore a




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Infrared Cordless Headphone Amplifier
TX-300 300mW FM Transmitter
arduino Sharp IR distance sensor outputting consistently high voltage
direct coupled discrete astable
fm radio circuit
Triac Applications
Magnetic Phono Cartridges Transistor RIAA Preamp
Block Transistor Radio
Typical hardware circuit diagram of FT245BM



Top