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Posts tagged RELAY SWITCHING circuit

DTMF control RELAY SWITCHING circuit

DTMF control RELAY SWITCHING circuit using M8870, 4013, BC548

Touch Switch Circuit using 4011

Touch Switch Circuit Touch Switch Circuit using 4011 CMOS C1         1          10uF 16V     Electrolytic Capacitor R1, R2     2          100K 1/4 Watt Resistor R3         1          10 Meg 1/4 Watt Resistor U1         1          4011 CMOS NAND Gate IC  

TDA2009 Circuit BCL 18W

TDA2009 Circuit BCL 18W Bridge audio power circuit

A simple low cost LED pulser

A simple low cost LED pulser using a 555 timer device A simple low cost LED pulser using a 555 timer device

Automatically Digitouch off on

Automatically Switches off on

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