'Lets Make A Flip-Flop - Ugly Style'

A simple circuit , but one that is important in electronics history is the Flip-Flop.
In this circuit the lamps will light alternatively one after another.

Here I have made it using an Ugly Style construction called Manhattan Style.
It is fast to knock up boards using this type of construction so it is well suited for playing with experimental or prototype circuits.

Simply cuts squares of PCB laminate and stick them down with super glue.

Here below is the schematic that was used to make this circuit.

The parts are very common and not expensive to buy.

You will need -

2 x 2N3904 NPN Transistors.
2 x LED's , standard 5mm types.
2 x 100uF 16V Electrolytic Capacitors.
2 x 470 Ohm Resistors.
2 x 10K Ohm Resistors.
1 x 9V Battery.

None of these parts or values are critical , so experiment or use what you have on hand.

The only critical thing to remember with this circuit is that it has many parts that can only go in one way around.
So check your polarities and your transistor pin outs to be sure its right.

Here is the video of the Flip-Flop that I made , but will it work ?

Watch it and find out