•  
  •  

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


LCR45 Atlas Passive Component Impedance Analyser (Model LCR45) PEAK ELECTRONICS picture

LCR45 Atlas Passive Component Impedance Analyser (Model LCR45) PEAK ELECTRONICS

$113.04



Digital Ohmmeter LCD Audio Impedance Test Meter Speaker Voice Resistor System picture

Digital Ohmmeter LCD Audio Impedance Test Meter Speaker Voice Resistor System

$88.00



TekBox TBLC08-US - 50uH 8A AC Line Impedance Stabilisation Network LISN picture

TekBox TBLC08-US - 50uH 8A AC Line Impedance Stabilisation Network LISN

$150.00



Tektronix 012-0057-01 Cable With BNC Male to Male Connector 43” 50 Ohm picture

Tektronix 012-0057-01 Cable With BNC Male to Male Connector 43” 50 Ohm

$9.99



ESI IMPEDANCE BRIDGE MODEL 250-DA -- Working, Pristine picture

ESI IMPEDANCE BRIDGE MODEL 250-DA -- Working, Pristine

$140.00



IMPEDENCE MATCHING TRANSFOMER BNC F-BNC F, 50 OHM TO 75 OHM, 20-1100 MHZ picture

IMPEDENCE MATCHING TRANSFOMER BNC F-BNC F, 50 OHM TO 75 OHM, 20-1100 MHZ

$28.00



Radio Electronics Production High Impedance Headphones  Impedance picture

Radio Electronics Production High Impedance Headphones Impedance

$9.55



Canare BCJ-XP-TRB Impedance Transformer picture

Canare BCJ-XP-TRB Impedance Transformer

$7.99



UFI Checktrode 1089 MKIII Impedance Meter + Case Electrode Tester Total Contact picture

UFI Checktrode 1089 MKIII Impedance Meter + Case Electrode Tester Total Contact

$169.99



Digital Handheld Megohmmeter Insulation Resistance Tester Audio Impedance Speake picture

Digital Handheld Megohmmeter Insulation Resistance Tester Audio Impedance Speake

$84.87