•  
  •  

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

4 Johnson Controls J992MDA-2 replacement pilots.
$20.0 4 Johnson Controls J992MDA-2 replacement pilots.  picture
NEW JOHNSON CONTROLS TEMPERATURE TRANSMITTER T-5210-1001 (S14-2-56D)
$34.99 NEW JOHNSON CONTROLS TEMPERATURE TRANSMITTER T-5210-1001  (S14-2-56D) picture
Johnson Controls Thermostat
$34.99 Johnson Controls Thermostat picture
JOHNSON CONTROLS #P70AB-12C Penn Micro-Set Suction Pressure Control - Prepaid
$47.95 JOHNSON CONTROLS #P70AB-12C Penn Micro-Set Suction Pressure Control - Prepaid picture
JOHNSON CONTROLS D352CA-1C USPP D352CA1C
$106.58 JOHNSON CONTROLS D352CA-1C USPP D352CA1C picture