3 Mode Siren Circuit with Schematics, NE555 (555)

I found 3 different type siren circuit with 555 timer.

http://www.circuitstoday.com/ding-dong-sound-generator
http://www.free-circuit.com/police-siren-sound-circuit-with-ne555/
http://www.electro-tech-online.com/content/430-police-siren-using-ne555.html

I tried them on a breadboard. Then I sort of combined them in a single circuit. I can switch between the different modes with jumpers (S1 and S2 on the schematics). I created a PCB in the end. This is my first PCB design. I manufactured it with toner transfer.

You can see and hear a little demonstration here.

I documented my breadboard with Fritzing. It is a little messy but maybe you can reproduce it.

And here is the schematics and layout. These are made with Fritzing also. You can read the part list from it.

 And finally the generated PCB and layout file. These are mirrored so you can use them directly with the toner transfer method. To print them with the right size make sure you print them with 300 dpi.