Magnetic Remote Sensor

Transmitter parts:

• R1 68K 1/4W Resistor
• C1 4n7 630V Ceramic or Polyester Capacitor
• C2 60-80pF 63V Ceramic Trimmer
• C3 100µF 25V Electrolytic Capacitor
• Q1 BC337 45V 800mA NPN Transistor
• Q2 BD139 80V 1.5A NPN Transistor
• L1 500 turns on a 10mm. diameter, 10cm. long ferrite rod.
• Enameled wire diameter: 0.2mm.
• The tap is made after 200 turns, ground side
• P1 SPST Pushbutton
• B1 6-9V Battery (4 to 6 AA 1.5V Cells in series, see Notes)

Receiver parts:

• R1,R3 1M 1/4W Resistors
• R2,R4 47K 1/4W Resistors
• R5 330K 1/4W Resistor
• R6,R7 68K 1/4W Resistors
• R8 180R 1/4W Resistor
• R9 100R 1/4W Resistor
• C1 470pF 63V Ceramic Capacitor (See Notes)
• C2 10nF 63V Polyester or Ceramic Capacitor
• C3 100µF 25V Electrolytic Capacitor
• C4,C5 100nF 63V Polyester or Ceramic Capacitors
• C6 1µF 63V Polyester, Ceramic or Electrolytic Capacitor
• D1 5 or 3mm. Red LED
• Q1,Q2,Q3 BC549C 25V 100mA NPN High-gain Low-noise Transistors
• Q4 BD328 30V 800mA PNP Transistor
• L1 700 turns on a 10mm. diameter, 10cm. long ferrite rod.
• Enameled wire diameter: 0.2mm.
• The tap is made after 350 turns, i.e. at the center of the winding
• BZ1 Piezo sounder (incorporating 3KHz oscillator, optional, see Notes)
• RL1 5V DIL Reed-Relay SPDT or DPDT (Optional, see Notes)
• B1 3V Battery (2 x 1.5V AA, AAA or AAAA Cells in series or 1 x 3V Lithium Cell)

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Artikel yang berhubungan :
- Hobi
- Sensor