Rocktron/Bradshaw Switching System - by Rocktron and sort of by Custom Audio. Interview with Bob Bradshaw page 16 Guitar Shop Spring 1994, which I have. Used by Marty Friedman of Megadeth, and Eddie Van Halen.
Rocktron Patch Mate was reviewed in Guitar Player Nov 1994 page 104.
http://www.rocktron.com/manuals/patchmat/manpatch.html - manual for Patch Mate
Good article about all sorts of switching devices for mixing MIDI processors and vintage pedals. Guitar Player November 1994, page 101 - Better Living with Vintage Effects, by Art Thompson. Covers:
Digital Music Corporation:
Amptone.com ultra gear-search page
Home (amp tone and effects placement)