izradio bi ovaj uređaj, a nasao sam samo 2 sheme za koje nemam tranzistore
pa bi molio sheme koje su provjerene.
ometac IR zraka
Moderators: pedja089, stojke369, [eDo], trax
ometac IR zraka
Sačuvajte drveće => pojedite dabra.
Daljinca 
za ometeanje daljinskog upravljaca.
evo sheme
http://www.elektronika.ba/el.sheme/?akc ... dshema=257
ali nemam tranzistore, a prica se da sa zamjenama ne radi.
evo sheme
http://www.elektronika.ba/el.sheme/?akc ... dshema=257
ali nemam tranzistore, a prica se da sa zamjenama ne radi.
Sačuvajte drveće => pojedite dabra.
http://www.instructables.com/id/TV-Remote-Jammer!/
Just point this small device at the TV and the remote gets jammed . The circuit is self explanatory . 555 is wired as an astable multivibrator for a frequency of nearly 38 kHz. This is the frequency at which most of the modern TVs receive the IR beam . The transistor acts as a current source supplying roughly 25mA to the infra red LEDs. To increase the range of the circuit simply decrease the value of the 180 ohm resistor to not less than 100 ohm.
It is required to adjust the 10K potentiometer while pointing the device at your TV to block the IR rays from the remote. This can be done by trial and error until the remote no longer responds.
Just point this small device at the TV and the remote gets jammed . The circuit is self explanatory . 555 is wired as an astable multivibrator for a frequency of nearly 38 kHz. This is the frequency at which most of the modern TVs receive the IR beam . The transistor acts as a current source supplying roughly 25mA to the infra red LEDs. To increase the range of the circuit simply decrease the value of the 180 ohm resistor to not less than 100 ohm.
It is required to adjust the 10K potentiometer while pointing the device at your TV to block the IR rays from the remote. This can be done by trial and error until the remote no longer responds.