Monday, August 11, 2008

555 Oscillator test



Jess just told me to "cut the shit and turn it down"-- this machine is really taking shape!

I used this diagram for the circuit (though I swapped out the 100K pot for a 1meg pot-- bigger difference between R2 and R3 = wider frequency sweep). It's a quick build and will only run you around $6 in parts. As you can hear, it isn't the most musical thing in the world, but for a rookie project, it's pretty satisfying. Give it a try!

Also, if you've built something around a 555 (or 556) chip and have a photo/video/circuit drawing of it somewhere online, be sure to leave the address in the comments!

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2 Comments:

Blogger felix said...

Bad ass!! I can't wait to see where you take this.

2:08 AM  
Blogger Pete Shambler said...

Thanks Felix!

The first thing I'm going to add is a volume pot-- going from off to LOUD can be pretty jarring.

Some sort of gate control (either a momentary switch or an input) would be great to have, too.

Stay tuned for updates!!

10:52 AM  

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