555 Flip Flop.
This DIY kit will help with your soldering skills, while you learn about the standard 555 timer IC. The kit learns you how the IC flashes 2 LEDs, one ON and one Off at 50% intervals.
It intergrades a voltage-follower NPN transistor and Zenner as a stable voltage regulator.
So you can power it with 8-15V and no need to worry about the flashing rate varying between on-off times of the LEDs.
We have a 555 Flip Flop project.
555 Flip Flop Specification:
Capacitors Values: 330uF, 220uF, 100nF, 100uF
Resistors Values: 4.7K Ohm, 4.7K Ohm, 560Ohm, 560Ohm
LEDs: 2x 5mm LEDs
Diode: 2x 1N4001 Diodes and 8v2 zenner
Transistor: NPN Transisitor
Timer IC: NE555P Timer IC