This is really fantastic circuit.Because you can fun with this circuit.If others operate your TV set or setup you can use this to control them.and you can use this to annoy someone.so enjoy with this.
Parts:
Q1 2N4403 PNP Transistor
Q2 2N4401 NPN Transistor
C1 10nF Ceramic Disc Capacitor
C2 1uF Electrolytic Capacitor
D1, D2, D3 High Output IR LED
R1 100K 1/4W Resistor
R2 150K 1/4W Resistor
R3 10K 1/4W Resistor
R4 1K 1/4W Resistor
S1 Normally Open Momentary Push Botton
B1 4.5V Battery (Three "AA"s In Series)
MISC Wire, Case, Board
Note
# You may need to adjust the value of R5 for the right frequency.
#supply 4.5v
