# TV REMOTE JAMMER CIRCUIT USING 555 TIMER

Here is a Tv remote jammer circuit, using NE555 timer IC. By using this you can watch your favorite TV channel without any interruptions. Ie; No one can be able to change the channel by means of remote, if the circuit remains ON. The circuit is simple to make at your own home, with very low cost.  Let’s go deeply into the specification and requirements of this Project.

CIRCUIT DIAGRAM

COMPONENTS REQUIRED

 Components Rating Quantity IC NE555 1 Transistor SK100 (PNP) 1 Resistors 1K 1 560 1 180 1 POT 10K 1 Capacitor 0.01uF 2 Battery 9V 1

WORKING PRINCIPLE

This TV remote jammer is working on the basis, theIR rays emitted from the remote is interrupted continuously by means of this circuit. The normal operating frequency range of a  TV remote is 38KHz. This circuit produces a frequency of about 12KHz.

You can use our NE555 frequency Calculator tool to check and verify it.

The 12KHz frequency is generated by the help of NE555 timer IC, the frequency is determined by the network consisting of RA RB and C; 10K, 1K, and 0.01uF respectively. The output taken from the IC is given directly to a current driving PNP transistor, SK100. The transistor act as a switching network, it   goes into conduction whenever the output of IC drives into negative going cycle. The conduction of transistor switch ON the IR led and emits IR rays of frequency 12Khz. This may interfere with the rays emitted from TV remote, which makes it disabled.

### Tittu Thomas

#### Author & Editor

I'm Tittu Thomas, An Electronics and Communication Engineer from India, Kerala. I love doing hobby electronics circuits, blogging, programming, etc. Started this blog while doing my B-Tech degree under CUSAT university.

1. What is the purpose of 2 diodes in series?

1. Two IR LEDs are connected in series at the output to increase the Range and power of the circuit.

3. what if i dont have sk100 can i use 2N5401?

1. Yes, you can try with it.

If it works Do comment here....

4. Can i use 6kw appliances on the simple 12v-230v inverter assuming the secondary coil current is 25A, resistance is 9.6ohms, and output voltage from transformer is changed from 230v to 240v. Then input voltage is 12v, current is 10KA, resistance is 0.0012ohms. Will it work if i make this modifications in that ur simple 12v-230v inverter?

5. how to increase the range of the jammer

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