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Digit Led Display

Digit LED Display for audio level indicator using 7414, 7493A, 1N4148, 5v Led display board for audio level indicator using 7414, 7493A, 1N4148, 5v

LM555 Electronics Schematic Diagram Power-Up Reset Timers part 38

LM555 Electronics Schematic Diagram Power-Up Reset Timers part 38

Circuit control temperature fan ceiling

P1_____________22K R1_____________15K R2____________100K R3,R6__________10K R4,R5__________22K R7____________100R R8____________470R R9_____________33K C1_____________10nF D1________BZX79C18 D2_________TIC106D D3-D6_______1N4007 Q1,Q2________BC327 Q3___________BC337 SK1__________Female Mains socket PL1__________Male Mains plug & cable R3-R4 and P1-R1 are wired as a Wheatstone bridge in which R3-R4 generate a fixed two-thirds-supply “reference” voltage, P1-R1 generate a temperature-sensitive “variable” voltage, and Q1 is used as a bridge balance detector. […]

Holden Rodeo circuit

Holden Rodeo circuit Holden Rodeo circuit diagram for Headlight Switch Relay Holden Rodeo circuit diagram for Headlight Switch Relay Make and repair holden rodeo The following wiring diagram shows Holden Rodeo Headlight Switch Relay. This consists of battery,  fuse,  relay SPST, and headlight Holden Rodeo Headlight Switch Relay Wiring Diagram Wiring headlight switch relay troubleshooting […]

Circuit and Making Schema Alarm LED – speaker – remote – radio – for Car

I decided to build a compact, yet effective alarm. My demands were:- simple construction, reliable operation, very small power consumption, and, most of all, small size. I started with CMOS logic gates, but was soon forced to abandon the concept after a few unsuccessful attempts. Then I suddenly realized that a simple transistor switch might […]

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