adventures in circuit bending, diy electronics and experimental music
This is a Gristleism, the latest release from Industrial pioneers Throbbing Gristle. It is designed by Throbbing Gristle & Christiaan Virant (of FM3 Buddah Machine fame). It contains 13 loops of LoFi gristleized gorgeousness lovingly presented in glorious mono. It comes in 3 colours, black, red and chrome with exquisite die cut spot laminated packaging.
For me this was an instant target for modification, in terms of straight circuit bending there’s not much you can do with it other than increasing the pitch range, so to do something more interesting with it would require some additional circuitry. An LFO seemed the obvious choice but would have to built small to fit in the limited amount of free space inside. I went through several revisions before finalising what is presented here.
The circuit is based on Peter Edwards’ Speak and Spell LFO schematic at Casperelectronics.com, I made a few changes to the design to suit the Gristleism.
I built the mod over the Christmas holiday and posted some pictures on Flickr and audio on Soundcloud and was quickly bombarded with requests for schematics.
I have drawn up schematics with extensive build notes, high resolution images and Rapidonline.com order codes for all components.
I have specified some components for their size (eg 16mm pots) due to the limited amount of space available inside the Gristleism, if you use alternative parts check them for size before drilling any holes. There are additional photos on my Flickr page here.
Download schematics ASMO Gristleism mod corrected
UPDATE : a few people seem to be having problems opening the pdf, seems to be mostly PC users but some have said it’s fine.
I’ve uploaded high res jpegs here
You could also try updating to the latest version of Adobe Reader
UPDATE : Unfortunately I made a mistake on the schematics, the orange wire from pot VR4 is connected to the wrong point on the board.
It shouldn’t cause any damage to the Gristleism but means the LFO doesn’t work properly.
I have have corrected the mistake and uploaded the new file.
Apologies for any inconvenience.