Tag Archive: Oscillator

Jul 27

MM5369 60 Hz Time Base X’tal Oscillator

60 Hz Time Base X'tal Oscillator-schematic-diagram

Parts List Resistor : R1 ………………………………. 470 R2,R3 ………………………….. 3K3 R4 …………………… 16M (3x 5M6) Capacitor : C1 ……………………………… 33pF Variable Capacitor : VC1 ……………………………. 30pF Diode : D1 ………………………….. ZD 7,5V Integrated Circuit : IC1 ………………………… MM 5369 Other : X’tal ………………………. 3,579545  

Jul 24

DC 6-9V Mini Police Alarm

Mini Police Alarm-schematic-diagram

Parts List Resistor : R1 ………………………….. 180 R2,R3 ……………………… 15K R5 ………………………….. 3K3 R6 ………………………….. 10K R7 …………………………. 220K R8 …………………………… 1K2 R9 ……………………………. 150 Capacitor : C1,C2,C3 ………………….. 10uF C4 ………………………… 0,05uF C5 …………………………. 100uF C6 …………………………… 47uF Diode : D1,D2 …………………. 1N 4002 Transistor : TR1,TR2,TR3 ………….. FCS 9014 TR4 ……………………… FCS 9012 …

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Jul 24

8W Police Alarm/Sirene

Police Alarm2-schematic-diagram

Parts List Resistor : R1 ……………………………… 2K2 R2 ……………………………… 27k R3 ……………………………… 470 R4 ……………………………… 22K R5 ………………………………. 120 R6,R10 ………………………… 8K2 R7 ……………………………… 3K3 R8 ……………………………….. 1K R9 ……………………………… 4K7 R11 …………………………….. 220 R12,R13 ………………………. 18K R14 ……………………………… 10 Variable Resistor : VR1 ………………………….. 100K VR2.VR3 ……………………….. 2K Capacitor : C1 ………………………… 22uF/10V C2 …

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Jul 23

Anti Theft Ultrasonic Switch Transmitter

Anti Theft Ultrasonic Switch-schematic-diagram

Parts List Resistor : R1 …………………………… 12K Variable Resistor : VR1 …………………………. 10K Capacitor : C1 ………………………….. 1KpF C2 ………………………….. 10uF Diode : D1 ………………………. 1N4002 Integrated Circuid : IC1 ……………………… MC1455 Other : SCS-401 ………. 40KHz Ultrasonic Tranducer  

Jul 23

Light-Controlled Alarm

Light Control Alarm-schematic-diagram

  Parts List Resistor : R1 …………………………………. 47K R2 …………………………………. 330 R3 …………………………………. 150 R4,R5 …………………………….. 5,6K R6 …………………………………… 1K Variable Resistor : VR1 …………………………….. 100K Capacitor : C1 ……………………………. 0,05uF C2 ……………………….. 220uF/10V Transistor : TR1,TR3 ………………. FCS 9014D TR2 …………………….. FCS 9012H Semiconductor : SCR ……………………….. EC103D Other : LDR …………………………. Cds-05 Speaker …

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