Some lovers of High Fidelity headphone listening prefer the use of battery powered headphone amplifiers, not only for portable units but als...
Tampilkan postingan dengan label Fun Circuits. Tampilkan semua postingan
Tampilkan postingan dengan label Fun Circuits. Tampilkan semua postingan
Rabu, 26 Agustus 2009
This circuit measures the distance covered during a walk. Hardware is located in a small box slipped in pants' pocket and the display is...
This circuit is intended for children fun, and can be installed on bicycles, battery powered cars and motorcycles, but also on models and va...
Selasa, 25 Agustus 2009
This circuit was developed since a number of visitors of this website requested a timer capable of emitting a beep after one, two, three min...
The purpose of this circuit is to animate shop-windows by means of a capacitive sensor placed behind a post-card-like banner. The card is pl...
Senin, 24 Agustus 2009
This circuit generates an astonishingly real imitation of the chirping of the cricket. A suitable audio wave form is generated by IC2 and re...
This accurate one-pulse-per-second clock is made with a few common parts and driven from a 50 or 60 Hertz mains supply but with no direct co...
Sabtu, 22 Agustus 2009
This circuit produces a sound similar to the police siren.It makes use of two 555 timer IC...
This circuit produces the famous Big Ben sound. It produces the "ding dong" sound ...
Jumat, 21 Agustus 2009
This circuit produces a sound similar to a factory siren.It makes use of a 555 timer Ic us...
Kamis, 20 Agustus 2009
. This circuit warns the user against fire accidents. It relies on the smoke that is produ...
This device beeps intermittently for approx. two seconds when a person in a range of about 10 meters emits a whistle. The first two inverte...
Kamis, 13 Agustus 2009
This jam circuit can be used in quiz contests wherein any par- ticipant who presses his button (switch) before the other contestants, gets...
Senin, 03 Agustus 2009
This simple and inexpensive circuit built around a popular CMOS hex inverter IC CD4069UB offers four sequential switching outputs that ma...
J ust point this small device at the TV and the remote gets jammed . The circuit is self explanatory . 555 is wired as an astable multiv...
