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PNP transistor

PNP transistor system PNP transistor system

CMOS integated circuit

The 4093 CMOS integated circuit using BC547 , BC548 The 4093 CMOS integated circuit Parts R1 180 KOhm R2 12 KOhm R3, 8 47 KOhm R4 3,9 KOhm R5, 6, 16 10 KOhm R7, 10, 12, 14, 17   100 K R9, 11 1 MOhm R13, 15 3,3 KOhm C1, C6 10uF/16V C2 47uF/16V C3 […]

25W FM Booster transmitter

25W FM Booster transmitter

Led Strobe

6v led strobe circuit using CD74HC4017 and MM74C14 6v led strobe circuit using CD74HC4017 and MM74C14 Led Strobe 1 IC1 MC14584BCP IC2 CD74HC4017N T1 2N3904 or 2N4401 NPN transistor 8 D1 to D8 1N4148 or 1N914 Diodes 10 LEDs Blue, green or white Ultra-Bright LEDs with Vf = 3.2V or less at 20mA 1 R1 […]

Guitar headphone amplifier

Guitar headphone amplifier using BC239C, BC337, BC327 Guitar headphone amplifier using BC239C, BC337, BC327 Guitar headphone amplifier R1 = 10K R2 = 100K R3 = 68K R4 = 1.5K R5 = 3.3K R6 = 330R R7 = 4K7 R8 = 2.2R C1 = 1µF-63V C2 = 100µF-25V C3 = 470µF-25V Q1 = BC239C Q2 = […]

wiper motor control circuit

wiper motor control circuit using NE555, CD4017 wiper motor control circuit using NE555, CD4017

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