09.04.13

Touch Alarm

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Touch Alarm

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Touch Alarm Circuit

When signal came from touch sensor 555 send a pulse to transistor wich activate
relay(RELE)

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www.gmt-deutschland.de

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09.04.13

Touch Alarm

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R1­100K
R2­4K7
R3­10M
R4­ *SEE NOTE
R5­ *SEE NOTE
P1­100K
D1­1N4148
LED1­LED2 ­ 3mm
C1­47uF
IC1­555
T1­2N2222 or 2N3904
RELE 6V­12V

*NOTE IF VOLTAGE =9V R4­390 R5­390 IF VOLTAGE =12V R4­1K R5­1K

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