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Posts tagged How to make a simple touch switch circuit

How to make a simple touch switch circuit

How to make a simple touch switch circuit ? Simple touch switch circuit using transistor : C945

Best portable headphone amp circuit

Best portable headphone amp circuit using LM833 or NE5532 High impedance headphones using : P1          22K R1         560R R2,R3 10K R4        12K R5,R6 2R2 R7        22R C1                   1µF 63V C2,C3,C4     100µF 25V C5                  22pF 63V C6                  22µF 25V IC1                LM833 or NE5532 Q1,Q3           BC337 Q2,Q4           BC327 Power supply parts: R8                                  2K2 C7,C8                            2200µF 25V D1                                   […]

Circuit electronics to determine the humidity of the room

Circuit to determine the humidity is a comparator, which detects the temperature change is very small in relation to the ambient temperature environment. Parts: R1_____________22K Linear Potentiometer (See Notes) R2_____________15K @ 20°C n.t.c. Thermistor (See Notes) R3_____________10K 1/4W Resistor R4,R5,R7,R9____22K 1/4W Resistors R6____________220K 1/4W Resistor R8______________5K 1/2W Trimmer Cermet R10___________680R 1/4W Resistor C1_____________47µF 63V Electrolytic […]

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