This kit demonstrates the operation of
transistor-transistor astable flip-flop. Each transistor drives 2 LEDs in
series alternately.
Flashing rate can be changed by using different values of the electrolytic
capacitors ( C1 & C2) . Runs on 9V battery. Can also operate from 6V supply but with
lower LED
brightness.
We sold thousands of these kits to schools. A great starter
kit for beginners to learn soldering & reading schematic.
Sold without 9V battery. Battery clip included.
CLICK
THIS LINK TO LEARN HOW A TRANSISTOR ASTABLE
FLIP-FLOP WORKS
How transistor
astable circuit works --- (1)
How transistor astable circuit works --- (2)