Introduction: DUAL LED CHASER USING TRANSISTOR
COMPONENTS USED ARE
1)2 LED
2)2 TRANSISTOR BC457
3)2 100MICROFARAD CAPACITORS
4)1K RESISTOR
5)9V POWER SUPPLY
6)10 OHM RESISTOR
Step 1: FIX TWO TRANSISTORS
FIX TWO TRANSISTORS BC547 0N BREADBOARD
Step 2: CONNECT RESISTANCE
CONNECT 10K RESISTORS FROM BASE OF BOTH TRANSISTORS TO NEGATIVE RAIL
Step 3: CONNECT COLLECTOR TIP
CONNECT COLLECTOR TIP OF TRANSISTOR TO POSITIVE RAIL
Step 4: INSERT CAPACITOR
CONNECT CATHODE OF CAPACITOR TO THE BASE OF FIRST TRANSISTOR AND ANODE TO THE EMITTER OF SECOND ONE.CONNECT SECOND CAPACITOR THE BASE OF SECOND TRANSISTOR AND OTHER END TH THE EMITTER OF FIRST TRANSISTOR.
Step 5: INSERT LED
INSERT CATHODE OF LED IN EMITTER OF BOTH TRANSISTOR AND CONNECT ANODE TO 10OHM RESISTOR.CONNECT 10 OHM RESISTOR TO POSITIVE RAIL.
Step 6: CONNECT POSITIVE AND NEGATIVE RAIL TO BATTERY

Participated in the
Makerspace Contest 2017
2 Comments
5 years ago
Without a schematic diagram it looks like a flip flop setup. But that is merely wild guess.
5 years ago
Just a tip: Schematic diagrams are the language of electronics, they help to understand circuit operation and aid in construction. ☺