Transistor Blinker

135

02:55:27

Blinker circuit with two npn transistos

published 10 years ago

lenzrulz

10 years ago

Place a SPST switch (in the NO position) next to the earth, then close the SPST switch - the LED's will begin flashing...😎

lenzrulz

10 years ago

"Ground" not "earth"...lol

Robert_Kidd

10 years ago

Switch not necessary but reducing value of 100k resistors to (say) 40k makes circuit run better in EC :-)

lenzrulz

10 years ago

Still needs a switch, reducing the resistors value still won't allow the LED's to flash.

Kavee

10 years ago

Just increase the simulation speed

Kavee

10 years ago

40k provides better biasing as robert mentioned.

Victor805

10 years ago

Just shake to inject noise, destabilize the capacitors and make ot run.

lenzrulz

10 years ago

Shaking it works...gotta love the sim...😎

Kavee

10 years ago

Seems like sim takes time to do the calculations before go vibrent with animations. Untill then, the circuit seems not working (no blink), wait half a minute, it springs into life.

Kavee

10 years ago

I would be very dissapointed on the 25 bucks paid, If shaking it needs 😕

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