•  
  •  

TV remote control Blocker

- Designed by Naveen P N

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.

If there are any problems please contact webmaster@electronic-circuits-diagrams.com

Please share & like

Mitel HX Controller 580.1003 REV AJ HX Processor Module 5000 V4 Dual T1/E1/PRI
$1800.0 Mitel HX Controller 580.1003 REV AJ  HX Processor Module 5000 V4  Dual T1/E1/PRI picture
167449 New-No Box, Allen-Bradley 1747-L30A Processor Unit
$740.22 167449 New-No Box, Allen-Bradley 1747-L30A Processor Unit picture
1KG Dow Corning TC-5121C Computer notebook CPU silicone Thermal Grease #AA2A LW
$410.0 1KG Dow Corning TC-5121C Computer notebook CPU silicone Thermal Grease #AA2A LW picture
1KG Dow Corning CN-8880 LED lamps CPU graphics thermal paste Grease #AA1A LW
$155.0 1KG Dow Corning CN-8880 LED lamps CPU graphics thermal paste Grease #AA1A LW picture
SCHNEIDER ELECTRIC MODICON QUANTUM 140CPU31110 140-CPU-311-10 Factory Sealed
$3800.0 SCHNEIDER ELECTRIC MODICON QUANTUM 140CPU31110 140-CPU-311-10 Factory Sealed picture