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Posts tagged NECD882

Sweeping Tone Alarm Beeper

Sweeping Tone Alarm Beeper using 4069, TIP29C, NECD882

RELAY driver CIRCUIT WITH OPTICAL ISOLATION

RELAY driver CIRCUIT WITH OPTICAL ISOLATION using PMV30UN

Mini Guitar Amp circuit using TDA7052

Mini Guitar Amp circuit using TDA7052 R1    22K C1    10µF  25V C2    100nF  63V C3    220µF  25V IC1   TDA7052 SPKR    8 Ohm  Loudspeaker B1            9V, 3V  Battery

Portable Mic Pre-amp 2 transistor

Portable Mic Pre-amp 2 transistor using BC549C, BC547B

Digital Tester circuit

Digital Tester circuit with LM324

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