AboutMike Caldwell Expertise Fortunately, or unfortunately, there are no Led Zeppelin questions I can't answer. My immediate specialty (or proclivity as it may be) has to do with concert performances and lyrical interpretations.
Experience Countless hours of biographical research and personal interaction with relevant individuals. Avid contributor to Led Zeppelin newsgroups since 1997 (check Google groups!)
Publications Bullseye News Magazine. The Vapid Voice.
I recently watched the Knebworth concert and couldn't help but notice that for "Ten Years Gone" Page had the weirdest effect on his (black) telecaster. My memory if failing but I do recall it was a gizmotron or something of that nature. I believe it was controlled by the front strap knob thing but I'm not sure. Any information would be appreciated.
Dalton
Answer Page wasn't using his Gizmotron for that, he was merely using a B-Bender telecaster (see http://blogcritics.org/archives/2003/04/29/021311.php ) with which he could bend the B string by putting tension on the guitar strap itself. Beyond that, he also used an MXR 90 Phaser for applying the "swishy" phasing effects during the live performances of that song.
Gizmotron: The Gizmotron was a hexaphonic mechanical string bowing device invented by Lol Creme and Kevin Godley of 10CC. It never took off and was some kind of financial disaster. It has been described by Jimmy as a 'hurdy gurdy type of thing'. It existed in two versions: 4 or 6 strings (bass or guitar). The Gizmotron works by having a rubber wheel for each string and a key for each wheel, such that pressing down on the key engages the wheel with a rotating shaft and the guitar string. The shaft rotates the wheel which then excites the string. Jimmy may have used it on Carouselambra and In The Evening to produce the drone sound.