cheap epee buzz box

[peircer]

I want to make a cheap buzzer for epee, something that buzzes when the tip closes the circuit will do. Does anyone either know of a design floating around, or an IC that sets out a wave suitable for audio when it gets a connection to the battery. Thanks.

[lochinvar]

A battery, a 555 timer chip used as an oscillator, and an 8 ohm speaker would be the simplest way to go. (You'll need some resisters and some coupling capacitors, too.) If you add a second 555 chip as a timer, you can adjust the amount of time the first one will buzz for.

As for circuits that will do the job, make a web search for "555 timers" on Google or any other search engine you prefer. You'll get more circuits than you need.

If you've never worked with ICs before, find a tutorial on 555 timers. There are plenty of those around, too. As chips go, they're relatively easy to understand.

Good luck.

[peircer]

Perfect, thanks. I can design the circuit myself, I just didn't know what parts were what for an oscillator.