Tag Archive: Push-Button Switch

Jul 23

Light-Controlled Alarm

  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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Jul 08

LM386 Intercom

Parts List Resistor : R1 …………………………………. 10 R2 ………………………………. 5,6K Capacitor : C1 ……………………………. 220pF C2,C5,C6 …………………… 100uF C3 ……………………………. 47KpF C4 ………………………….. 100KpF Integrated Circuit : IC1 …………………………… LM386 Transfomer : T1 …………….. Transformer  1 : 25 Other : Speaker 2″ ………………….. 8 ohm    

Jul 08

MC14017B Electronic Dice

Parts List Resistor : R1,R4—R11 ………………… 1K R2,R3 ………………………. 10K Capacitor : C1 …………………………. 100uF C2,C3 ………………………… 1uF Diode : D1 ………………………. 1N4002 D2,—D10 ……………… 1N4148 D11,—-D17 ……………….. LED Transistor : TR1,TR2 ……………… FCS9014 Integrated Circuit : IC1 ……………………. MC14017B  

Jul 07

Anti Theft Infra Red Control Switch

Parts List Resistor : R1 ………………………………… 220K R2 ………………………………… 470K R3 ………………………………….. 33K R4,R7 …………………………….. 180K R5,R11 …………………………….. 47K R6 …………………………………… 22K R8 …………………………………… 470 R9 …………………………………….. 1K Variable Resistor : VR1 …………………………………… 10K Capacitor : C1 ………………………………………… 4,7KpF C2 ………………………………………… 10KpF C3 ………………………………………… 33KpF C4 ………………………………………….. 10uF C5,C6 …………………………………….. 100uF Transistor : TR1,TR2,TR3,TR4 ………………. …

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