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LM555 Electronics Schematic Diagram Sweeping Output Frequency Siren part 24

LM555 Electronics Schematic Diagram Sweeping Output Frequency Siren part 24

LM555 Microcontroller Circuit TIMER part 22

LM555 Microcontroller Circuit TIMER part 22

BA1404

BA1404 circuit diagram

Audio Amplifier Circuit using TDA7231

Audio Amplifier Circuit using TDA7231

Doorphone Intercom Circuits using LA4100, LA4101, LA4102

Doorphone Intercom Circuits using LA4100, LA4101, LA4102 Doorphone Intercom Circuits using LA4100, LA4101, LA4102 R1 …….. 5K6 R2 …….. 3K R3 …….. 47 RX …….. 220(6V) 390 (9V) 560(12V) C1,3 …… 10nF C2 …….. 100nF C4,6 …… 47uF/10V C5 …….. 47pF/50pF C7 …….. 10uF/10V C8,9 …… 100UF/10V C10 ……. 220uF/10V D1 …….. 1N4001 D2 …….. […]

Driver circuit LED Chaser

Driver circuit LED Chaser CD74HC4017, MM74C14 Driver circuit LED Chaser CD74HC4017, MM74C14 Parts List IC1 MC14584BCP IC2 CD74HC4017N T1 2N3904 or 2N4401 NPN transistor D1 to D8 1N4148 or 1N914 Diodes 10 LEDs Blue, green or white Ultra-Bright LEDs with Vf = 3.2V or less at 20mA R1 100K 1/4W resistor R2 1M Linear-taper potentiometer […]

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