Here is the circuit diagram of Two Flashing LED's for different applications (such as model construction), and recreational. Having adjustable flashing speed with two potentiometers. It is the collection of a few active and passive components. This circuit is very easy to built ( a good idea for beginners ) and can be build on a general purpose pcb or on a veroboard. The complete picture and schematic of this project is shown below
Picture of the project:
Circuit diagram:
Parts:
- R1-R2 = 1K
- R3-R4 = 10K
- P1-P2 = 250K
- C1-C2 = 10uF-25v
- Q1-Q2 = BC547B
- D1-D2 = Red-Green LED
- B1 = 9 volt battery