Up to 50 cm. range, optional relay operation
- R1 10K 1/4W Resistor
- R2,R5,R6,R9 1K 1/4W Resistors
- R3 33R 1/4W Resistor
- R4,R8 1M 1/4W Resistors
- R7 10K Trimmer Cermet
- R10 22K 1/4W Resistor
- C1,C4 1µF 63V Electrolytic or Polyester Capacitors
- C2 47pF 63V Ceramic Capacitor
- C3,C5,C6 100µF 25V Electrolytic Capacitors
- D1 Infra-red LED
- D2 Infra-red Photo Diode (see Notes)
- D3,D4 1N4148 75V 150mA Diode
- D5 LED (Any color and size)
- D6,D7 1N4002 100V 1A Diodes
- Q1 BC327 45V 800mA PNP Transistor
- IC1 555 Timer IC
- IC2 LM358 Low Power Dual Op-amp
- IC3 7812 12V 1A Positive voltage regulator IC
- RL1 Relay with SPDT 2A @ 220V switch
- Coil Voltage 12V. Coil resistance 200-300 Ohm
- J1 Two ways output socket
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