IR Remote Control Jammer

Schematic

Parts

Part Total Qty. Description Substitutions R1 1 100K 1/4W Resistor R2 1 150K 1/4W Resistor R3 1 10K 1/4W Resistor R4 1 1K 1/4W Resistor R5 1 22 Ohm 1/4W Resistor See "Notes" C1 1 10nF Ceramic Disc Capacitor C2 1 1uF Electrolytic Capacitor D1, D2, D3 3 High Output IR LED Q1 1 2N4403 PNP Transistor Q2 1 2N4401 NPN Transistor S1 1 Normally Open Momentary Push Botton B1 1 4.5V Battery (Three "AA"'s In Series) MISC 1 Wire, Case, Board Notes Email Carl with questions, comments, etc. You may need to adjust the value of R3 for the right frequency. A pot can be used. You may only need one IR LED. It goes without saying that this circuit should be used with descretion. The value of R5 depends on your supply voltage and LED. For a standard 4.5V supply and standard IR LED, use 22 Ohm as specified on the parts list. This forum topic covers this resistor as well as a few other issues with the circuit.