Circuitbenders Forum

Circuitbenders Forum => Drum machines => Circuitbending discussion => Roland & Boss => Topic started by: sensor on February 06, 2008, 02:25:58 PM

Title: tr-707
Post by: sensor on February 06, 2008, 02:25:58 PM

hi,

i bought an tr-707 and i'd really love to bent it. so has anyone any tips where to start. i just don't want to crash the circuits.

thanks a lot,
matthias

Title: Re: tr-707
Post by: Circuitbenders on February 06, 2008, 04:23:25 PM

(http://www.circuitbenders.co.uk/IMAGES/tips/roland-rom2.jpg)

those chips, apart from the surface mount one/

Title: Re: tr-707
Post by: sensor on February 07, 2008, 03:42:10 PM

has anyone an idea how to make the pitch mod for every single instrument?

matthias

Title: Re: tr-707
Post by: voodoolikeudoo on February 07, 2008, 09:05:16 PM

I've seen it done. There was a DIY guide on how to do it on the net but the page seems to have disappeared. I think it involved using a 555 timer for every voice to provide a new clock. Looked very complicated.