via this auction"Diabolical Devices offers an extensively modified version of this classic drum machine. Our modifications include 10 pitch controls, one for each sound/group (corresponding to volume faders) and 12 point ROM bending patch-bay. Each drum sound/groups pitch can be independently adjusted from above normal to WAY below normal pitch. Each external clock generator (which controls the pitch) can be bypassed using the corresponding toggle switch. The ROM bending patch bay will generate a wide variety of circuit-bent sounds including filtered, distorted, modulated, and otherwise unique effects.
Diabolical Devices aka Class A Electronics, LLC is a leader in Professionally Modified Synthesizer and Audio Equipment, Expert Repair Services, and has a full line of Hand-Wired Tubes Amplifiers and Effects (Diabolical Amplification). Their work has been featured at NAMM, art galleries, music videos, countless tech blogs, and used by musicians all over the world, professionals and enthusiasts alike. The circuit-bending and synth mods are the work of head-technician James Gramling who has spent the last 12 years in professional audio service and electronics prototyping. Check out the new www.circuit-bent.com for updated specs, custom work questions, and new releases from Diabolical Devices
Diabolical Modified Roland TR-707 Features:
(10) External CMOS CLK Generators/Pitch controls with bypass switch and LED indicators
12 point circuit-bending patch bay (patch cables included)
Blue LED color change"
video previously posted here
