Sarfaaz, welcome to Electro-Tech Online! Next time when you want to ask a new question, you can go to the Forums page, select the forum you want to post to, then click the "Post New Thread" button to create your own. Hijacking other peoples threads, as well as resurrecting old ones, is generally discouraged here.
With that being said, enjoy the site!
Regards,
Matt
I think what you want is a 3 transistor oscillator where using 3 transistors you sequentially light 3 LEDs? You make no mention of timing? Would the below circuit be what you want?
The circuit does not need D4 or R7 making it a 3 transistor 3 LED circuit. You figure the LED resistors based on the LEDs you choose to use.
You really need to better explain what you want or expect the circuit to do. My reply is little more than a guess.
Sarfaaz, welcome to Electro-Tech Online! Next time when you want to ask a new question, you can go to the Forums page, select the forum you want to post to, then click the "Post New Thread" button to create your own. Hijacking other peoples threads, as well as resurrecting old ones, is generally discouraged here.
With that being said, enjoy the site!
Regards,
Matt
I assume the circuit I posted is not what you want. Do you mean a "Shift Register" using for example flip flops like maybe D flip flops configured as a shift register? What exactly do you want the circuit to do with the LEDs you mention?