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Simple Audio Indicator TAA300

Simple Audio Indicator TAA300 very simple audio oscillator electronic project can be designed using IC TAA300 This circuit is intended to indicate the power output level of any audio amplifier. Simple circuit to power your 9 vol

diy ultrasonic transducer

diy ultrasonic transducer diy ultrasonic transducer circuit using NE555, BC557, BC558, SK100 diy ultrasonic transducer diy ultrasonic transducer

Noise sensor circuit for light switch

Noise sensor circuit for light switch using HEP801, HEP50 Parts : R1 1.5 MΩ      C1 100 µF       D1 1N4007 R3 3.9 kΩ        C2 1 µF           Q1 HEP801 R4 150 kΩ       C3 10 µF         Q2 HEP50 R5 18 kΩ         C4 10 µF R6 560 Ω         C5 1 µF […]

Circuit diagram Segment LED using L7107

Circuit diagram Segment  LED using L7107 R1= 9.1 M R2=910 K R3=91 K R4=9.1 K R5=1 K R6=100 K R7= 5 K R8=5.6K R9=1 M R10=47 K R11,R12,R13=220 ohm C1=100 pF C2=0.1uF C3=0.01uF C4=0.47uF C5=0.22uF C6=0.33uF C7=1uFC8=C4=0.047uF C9=10uF D1,D2:n4148 D3:Led D4,D5:led IC1: ICL7107 Digital analog converter circuit L7107 and seven-segment decoder R1= 9.1 M R2=910 […]

Sound Oscillator Circuit

Sound Oscillator Circuit for testing using BC559, BC549

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