This is my second project in an enclosure. It has two different circuits inside and two different power supplies. Although each circuit is connected to the same speaker. https://www.instructables.com/id/555-Mind-Mangler/
I liked their circuit so much that I decided to mangle it and make it interactive and even more annoying. It's easy to due, I just followed their schematic in the video to make my first one on a bread board. Then I got bored with it and wanted to add some interactivity. I sorta turned it into a single 555 atari punk console. I suggest hooking up 3 speakers for the best effect. But my box could only fit one.
Step 1: Download the Fritzing File
Download the Fritzing File and look at how it's connected on a Project Board.
It should be easy to follow.
Step 2: Prototype Time
In the schematic on the Fritzing file I added connections for additional speakers. This is also optional. I also soldered all of this to a nice little 300 point solderable breadboard I got from allelctronics.com. Buy one here. Pictures will be posted soon.
Step 3: EMI From Cardboard?
For some reason when I put the circuit into the cardboard box, it would either not work or do some weird things. Could it be EMI? So I made this holder for the circuit board out of Super Mini Dice I got from dx.com
Step 4: Extra Features
There are to wires connected to the each of the buttons contacts with bare contacts on each of them. They make a distortion sound when not pressing the button if you touch one or both of them. Also I used a 500K potentiometer. You can use 470K if you want to.
Step 5: Add an Additional Circuit
I also added this ramsey kit the Mad Blaster Warbler Alarm.
on the schematic:
U1 = 4011 IC 14-Pin DIP
R3 = 100K Potentiometer
Q1 = 2N3904
Q2 = JE200
Step 6: Put It in a Nice Box.
I didn't take any pictures of this step. This was only my second project in a project box. Originally it didn't even have the Warbler circuit.