i have been getting into noise makers and such recently so i thought i owuld share some of them with ya.  the latest one is a freq dividwer.  now i was wondering how this would sound with a guitar in it. and since i didnt' have one available i built another freq generator and used it.  i liked what i heard so i wanted to share it with ya by the way i found this 555 circuit somewhere on the net and redrew it cause the copy i had was bad. it is a year or more old so i dotn' konw where i got it so kudos to whoever had it first.



http://www.geocities.com/austenfantanio//divisionhell.htm

:mrgreen: Wahoo! Breadboard time!

:? I donno what I did wrong but it sounds like a box of rice crispies :? I had to turn on the booster in my guitar to get any sound out of it at all, and it pops at me all the time.. However I did use 2 .47uF monolythic caps in parallel instead of 1uF.
Could be my dodgy breadboard etc. I'll perf it up first and post here.

hey guys

555 is not a dividor.  its an oscillator.
CAN B a missing-pulse-detector.

triggering at pin2 directly from a guitar(preamp) is not
recommended.  Too widely varying alplitudes.
Maybe run signal first thru a comparator to square up
trigger signal.

check out other dividors.
i recall that Paia made/still makes a "Rocktive Dividor".
Supposed to have very good triggering.

This is different from "octave mulitiplier" but think U could
use frequency doubling techniques to build both into one.
This ONLY puts out square waves/pulses soz U need a
post EQ.

tone

I know it's a timer But it can be fun to mess around with. And anyway Ansil has a soundsample up on his site so that sounds good, it might be fun to fiddle with. And if it doesn't work, shame but another thing learnt

In Laurier Handy Dandy site there is another divisor with a 555, but he calls for a square wave input. Maybe this is the problem. Build the Tim Escobedo's Digital Octaver Fuzz, but jump the secound part of the IC, getting only the square wave fuzz.

Could be it wants a square wave input. Hmmmm. Howabout making a stage before the 555 that amplifies REALLY loud like with an LM386 and then hard-clipping it so that the signal is nearly a square wave. Maybe that'd work...

Quote from: smoguzbenjaminCould be it wants a square wave input. Hmmmm. Howabout making a stage before the 555 that amplifies REALLY loud like with an LM386 and then hard-clipping it so that the signal is nearly a square wave. Maybe that'd work...

actuallly thats what i was thinking there good buddy.   i was thinking of adding in a squareing device in front of it.. posibly with some filters to notch out certain freq.  i mean it isn't a plug and play box, it is a stepping stone , a circuit snippet to quote TIM.  it is a step in the right direction.  OF NOISE..!!!!!!!!!!!!!

Ghehehehe. :twisted: Well my soldering iron's dead so I have plenty of time for breadboarding :twisted: