I'm really back in business! This is the second PCB design I've made in the last two weeks!

the Time Machine

I've had an idea for something like this for quite a while now, but a much simpler one.
Originally it was a three-in-one-design with a Monostable, Astable and a LED Dimmer circuit on the same PCB, with a code switch to select desired function.

Now it's more some kind of an experiment board for the 555 IC, about 15-20 different circuits are possible to make.
To make the desired circuit you just solder the needed jumpers and components at the right spacing.

In time I will make easier schematics on the pdf of the PCB layout for as many circuits as I can find, to make it simpler to make the wanted circuit.