The 555 Timer is one of the oldest integrated circuits still available. It's also one of the few ICs you can buy at the mall! Its hardiness -- and the fact that you can drive a speaker directly from the output on pin 3 -- have made it a natural choice for electronic music experiments in noise since the seventies. The 555 Noisemusick kit utilizes two 555 timers.

Read on for instructions!

Version 2 of the 555 Noisemusick kit is done! Here are the changes from version 1:

1. Larger, friendlier solder pads!
2. An on/off switch!
3. A power indicator LED!
4. Generally improved board layout
5. Oh yeah: a new name!

Here are the schematics and board files:

A larger PNG image of the schematic.
The schematic in Eagle.
The board file in Eagle.