•  
  •  

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

MOTOROLA MRF654 Encapsulation:RF TRANSISTOR,RF POWER TRANSISTOR
$20.0  MOTOROLA MRF654 Encapsulation:RF TRANSISTOR,RF POWER TRANSISTOR picture
(QTY 4) 2N5886 BIPOLAR TRANSISTOR NPN 80V 25A 200W TO-3 PACKAGE OF 4
$12.0 (QTY 4) 2N5886 BIPOLAR TRANSISTOR NPN 80V 25A 200W TO-3 PACKAGE OF 4 picture
Mini Size Camera Module For Raspberry Pi Zero V1.3 OV5647 500W Pixels Small
$15.28 Mini Size Camera Module For Raspberry Pi Zero V1.3 OV5647 500W Pixels Small picture
Semikron SKM150GAL123D Semiconductor Module Igbt Semikron Semitrans M
$141.21 Semikron SKM150GAL123D Semiconductor Module Igbt Semikron Semitrans M picture
5pcs 2SA2210 NEW TO-220ML PNP Epitaxial Planar Silicon Transistor
$7.15 5pcs 2SA2210 NEW TO-220ML PNP Epitaxial Planar Silicon Transistor  picture