Print Page - Simple stutter/automated killswitch pedal

Title: Simple stutter/automated killswitch pedal
Post by: Mind Flayer on February 25, 2015, 04:10:13 PM

I am interested in building a very simple stutter pedal that would basically sound like an automated kill switch. Aside from the footswitch to turn the effect on and off, the only control would be one knob to control the speed of the effect. Anybody have any ideas on how this would be done? Thanks

Title: Re: Simple stutter/automated killswitch pedal
Post by: nocentelli on February 25, 2015, 04:28:43 PM

Like a choppy tremolo?

Title: Re: Simple stutter/automated killswitch pedal
Post by: Brisance on February 25, 2015, 04:59:01 PM

Maybe a MOSFET in a voltage divider configuration with a 555 output going to the gate?

Title: Re: Simple stutter/automated killswitch pedal
Post by: GGBB on February 25, 2015, 05:01:27 PM

Quote from: nocentelli on February 25, 2015, 04:28:43 PM
Like a choppy tremolo?

+1

Any tremolo that can do decent square wave and goes both slow enough and fast enough as well as deep enough for your purposes.

Title: Re: Simple stutter/automated killswitch pedal
Post by: Gus on February 25, 2015, 05:08:23 PM

Have you looked at GEOFEX?

Title: Re: Simple stutter/automated killswitch pedal
Post by: GGBB on February 25, 2015, 05:21:09 PM

Quote from: Brisance on February 25, 2015, 04:59:01 PM
Maybe a MOSFET in a voltage divider configuration with a 555 output going to the gate?

The Tiny Tremolo uses a 555 to drive an LED/LDR - very square and a simple circuit:

http://www.diystompboxes.com/smfforum/index.php?topic=87322.msg840206#msg840206

Title: Re: Simple stutter/automated killswitch pedal
Post by: FUZZZZzzzz on February 27, 2015, 05:07:50 AM

There was a discussion here about the utter stutter pedal. Maybe breadboard this?
http://ilovefuzz.com/viewtopic.php?f=151&t=32044&sid=691cfbdf5865ed0c9bda909e801704ad&start=15

bad drawing I know, but it should give you some ideas.

(http://s22.postimg.org/i38f4psyp/Feedback_looper_build.jpg)

Title: Re: Simple stutter/automated killswitch pedal
Post by: smallbearelec on February 27, 2015, 07:05:39 AM

+1 re a square-wave trem. My Tremulous Bear will do this:

http://diy.smallbearelec.com/Projects/TremBear/TremBear.html

You might also want to experiment with a Repeat Percussion Device like either the Moosapotamus Skippy:

http://www.moosapotamus.net/ideas/skippy-tremolo/

or this idea I came up with:

http://diy.smallbearelec.com/Projects/RepeatPerc.gif

Time to pull out the breadboard and find what makes you happy.

Title: Re: Simple stutter/automated killswitch pedal
Post by: GGBB on February 27, 2015, 02:31:35 PM

Quote from: smallbearelec on February 27, 2015, 07:05:39 AM
http://diy.smallbearelec.com/Projects/RepeatPerc.gif

Cool! What is the value of the top resistor in the LFO?

Title: Re: Simple stutter/automated killswitch pedal
Post by: smallbearelec on February 27, 2015, 10:34:51 PM

Quote from: GGBB on February 27, 2015, 02:31:35 PM
Quote from: smallbearelec on February 27, 2015, 07:05:39 AM
http://diy.smallbearelec.com/Projects/RepeatPerc.gif
Cool! What is the value of the top resistor in the LFO?

I can't believe that I forgot to write it down when I was trying it out. However, you will be breadboarding this anyway, so experiment to find a value that gives the upper speed limit that you want.

Title: Re: Simple stutter/automated killswitch pedal
Post by: danielzink on February 28, 2015, 12:35:31 AM

Nobody ?

Really ?

Burst Box !!!!

Title: Re: Simple stutter/automated killswitch pedal
Post by: snarblinge on February 28, 2015, 05:48:55 AM

Thanks danielzink, I clicked in just to see if this had gone that way.

Jack White III

DIYstompboxes.com

DIY Stompboxes => Building your own stompbox => Topic started by: Mind Flayer on February 25, 2015, 04:10:13 PM