just noticed freppos wonderful xorcist on the gfx home page and it reminded me of this post.
am guessing respone was limited either because no one needs one or the link to the pdf has died.
anyway, here is another link working today.
http://docslide.us/documents/stutter-trem.html"STUTTER TREMOLO BUILD
INSTRUCTIONS
By FF_Pedals 2011
Layout by Culturejam 2011"
schematic inside. there are two schemos, and updated 2011 version which is the main one (page 2) and an earlier ticky version (appendix at end).
i have tried a couple of 555 stutters but they either didn't work or were badly ticky. this one seems to have resolved ticking.
another stutter i have noticed is the harrymatic (schematic here at gfx):
Very simple distortion (LM386) with stutter (555)
http://guitar-fx-layouts.42897.x6.nabble.com/Very-simple-distortion-LM386-with-stutter-555-td1817.htmli have read some reports of difficulties with this one (above) due to ticking. though that may be down to individual building issues rather than design.
or maybe the stutter section of freppo's build can be isolated. no disrespect to freppo intended at all by that (the complete pedal is a beauty and i admire his work). but purely in the interests of obtaining a small (well designed, not noisy or unreliable) self-contained stutter circuit that can be patched into other builds of all kinds, dirt and mod.
build doc and schemo here:
http://www.parasitstudio.se/uploads/2/4/4/9/2449159/xorcist_doc.pdfvero here:
http://tagboardeffects.blogspot.co.uk/2016/05/parasit-studio-xorcist.html