The Gizmo

The Gizmo, also called the Gizmotron,[1] is an effects device for the electric guitar and bass guitar. It was invented in 1969[2] and patented by the English rock musicians Kevin Godley and Lol Creme in 1975, whilst they were members of the British rock group 10cc.

Taped or permanently attached to the body of an instrument, the Gizmotron uses small, motor driven plastic/rubber wheels to make the strings vibrate, yielding resonant, synthesizer-like sounds from each string.

The device was famously used by Jimmy Page on parts of the Led Zeppelin album In Through the Out Door.

Musitronics, the company originally licensed to manufacture the commercial version of the Gizmotron, released the product to the public in 1979. Quality was inconsistent. According to Musitronics engineer Mike Beigel, "The product, though desired by many musicians at the time, simply could not be reliably manufactured and further – even at best – only worked on some notes of the instrument, guitar or bass."[3] In a bid to solve problems with the Gizmotron, Musitronics hired Bob Moog to design an electronic device to "mask the inadequacies of the still unperfected product”. Moog gave his opinion that he did not know how to “make it sound good enough” and advised that the project should be abandoned.[4]

Plagued with design and manufacturing problems, the Musitronics Gizmotron did not live up to expectations and was a commercial failure. Production of the Musitronics Gizmotron ended in 1981 when the manufacturer filed for bankruptcy.

In March 2014, it was reported in Vintage Guitar Magazine that Aaron Kipness was working on plans to launch a new and improved Gizmotron 2.0[5] The Gizmotron 2.0 debuted at the summer NAMM show in 2015[6] and was released to the public in 2016.

Origins

10cc

The Gizmo was first used on 10cc's instrumental "Gizmo My Way", a song arranged as a type of laid back beach music, where it appears as a slide guitar effect and sustained background effect. "Gizmo My Way" was the B-side to "The Wall Street Shuffle", and appeared on 10cc's second album, Sheet Music (1974), which included more uses of The Gizmo, most notably on the track "Old Wild Men". Its presence is heard throughout most of the track as a unique shimmering background guitar effect. The Gizmo was also used on the Sheet Music track "Baron Samedi".

The Gizmo continued to be used on 10cc's subsequent albums The Original Soundtrack (1975) and How Dare You! (1976) on the tracks "Blackmail", "Brand New Day", "How Dare You", "Lazy Ways", "Iceberg", and "Don't Hang Up". Godley and Creme continued to use the Gizmo after they had left 10cc.

Godley & Creme

The Gizmo's ability to create a wide range of sounds was central to the production of Godley and Creme's first post-10cc project, the 1977 triple concept album, Consequences. Godley and Creme left 10cc to create Consequences which was intended to be a promotional album to market the "Gizmo". According to Paul Gambaccini's sleeve notes for Consequences,[7] 10cc were unable to afford an orchestra for their early albums, so Creme and Godley imagined an effects unit that would enable a guitar to produce violin-like sounds (this was some years before the introduction of the polyphonic synthesiser and long before the development of digital sampling).

Other Godley & Creme albums featuring the Gizmo include L and Freeze Frame.

Mechanism

The device, a small enclosure attached to the guitar, consists of small motor-driven wheels with serrated edges to match the size of each string. The continuous bowing action is activated by pressing one or all of keys located on the top of the unit. Pressing a key allows the wheel to descend against a motor-driven shaft and bow the corresponding string, while the other hand remains free to fret single notes or full chords.

John McConnell, a senior lecturer in physics at the University of Manchester Institute of Science and Technology (UMIST), assisted Godley and Creme in the development of the prototype.[8] He considered it critical that the instrument retain the natural decay of a note rather than the sharp cut-off often experienced with an electronic synthesizer. Godley and Creme used only the original prototype Gizmotron in 10cc recordings.

Musitronics offered two versions of the Gizmotron to the public; one for guitar and one for bass. Ultimately, few Musitronics Gizmotrons were made; bass versions were produced in a much larger quantity than guitar versions.

Inherent difficulties

A fault with the prototype and Musitronics Gizmotron was that the wheels were affected by conditions such as humidity and temperature. Additionally, due to deficiencies in the design of these units, the wheels would either produce harmonics of their own that varied with the speed of the wheel, or would act as a secondary bridge and produce dissonant overtones, depending on the notes played. According to Kevin Godley, "Some days it sounded absolutely beautiful and other days it sounded like shit. Sometimes it was like a chainsaw, and sometimes it sounded like a cello and other times it varied between to two, so it was never a particularly stable piece of kit, but we persevered with it.”[9]

The severity of these problems could be minimized by adjusting the proximity of the wheels to the guitar strings with extreme precision. Adjustment was very time-consuming, where each wheel (and arm) is moved closer or farther to a string to achieve the purest tone. Improper set-up of these wheels meant either a lack of tone, or — usually in the case of over-eager amateur or impatient guitarists — an undesirably harsh tone caused by wheels being forced too tightly against the strings. Using the Gizmotron required that guitarists modify their playing techniques to use only a very light touch when pressing the keys. Specific and repeated instructions in the Gizmotron owner's manual stress this.

In the Musitronics version of the Gizmotron, an improper set-up resulted in a quick wearing down of the wheels for which there were no replacements — the wheels were not removable from the arm attachments. Musitronics Gizmotron wheels were expensive and problematic to produce.

Musitronics and Gizmo, Inc. Bankruptcy

Musitronics created a separate division, Gizmo Inc., to produce the Gizmotron and solve its problems. Deeply in debt and unable to raise the funding necessary to continue operations, due largely to a failed Musitronics marketing deal with ARP Instruments, Gizmo Inc. declared bankruptcy in 1981, shortly after its president, Aaron Newman, suffered a heart attack.[10]

Today, intact and working Musitronics Gizmotrons are virtually non-existent. The wheels and arm attachments were made of a plastic (Delrin) that cracks and weakens over time. As a result, the wheels and arms of all Musitronics Gizmotrons become brittle and disintegrate even in "like new" unopened boxes. Other guitar effects have since been used to create sustained tones, but because of the Gizmotron's mechanical nature and physics involved, electronics alone have not been able to replicate the sound.

Gizmotron 2.0

In 2013, Aaron Kipness, a vintage keyboard specialist and restoration parts manufacturer, assembled a small team of engineers to design a new and improved version of the Gizmotron using modern materials and manufacturing methods. Gizmotron LLC was subsequently formed and on February 3, 2016, the Gizmotron 2.0 was released. The innovations made to Godley and Creme's original design were substantial enough that Kipness was awarded a US Patent (9,997,144) for the Gizmotron 2.0.

Use by artists

The Musitronics and Prototype Gizmotron can be heard on:

gollark: Moving conversations between channels has never worked.
gollark: > that's like the single good thing about it I can think ofAgain, do you *not* have values other than "maximize the number of humans around"?
gollark: Self-loathing is totally a thing which exists.
gollark: Yes, go humans, ish.
gollark: 2023.

See also
  • Mu-tron
  • ARP Instruments, Inc. – the company bought Musitronics and renamed it to Gizmo Inc.
  • Guitar harmonic#String harmonics driven by a magnetic field – list of similar guitar effects

References
  1. The name "Gizmotron" comes from the idea that it was intended to be a non-electronic and non-synthetic competitor in the market of other "orchestral" instruments like the Mellotron, Orchestron, and Birotron.
  2. Avis, Tom "The Gizmotron is the strangest guitar device you’ve never heard of" https://ontheaside.com/uncategorized/the-gizmotron-is-the-strangest-guitar-device-youve-never-heard-of/
  3. Dregni, Michael, "Gizmotron Most Bizarre Guitar Effect of All Time?", in Vintage Guitar Magazine, pp. 44–47, March 2014 http://www.vintageguitar.com/18431/gizmotron/
  4. Provoost, Bart, "What the heck is that?! Behind the scenes of the weirdly wonderful gizmotron, in Gearphoria pp 24-25, SEP/OCT 2014 Vol 3 No 1 http://www.gearphoria.com/e-mag/v3n1/24
  5. Dregni, Michael, "Gizmotron Most Bizarre Guitar Effect of All Time?", in Vintage Guitar Magazine, pp. 44–47, March 2014 http://www.vintageguitar.com/18431/gizmotron/
  6. https://www.guitarplayer.com/gear/summer-namm-2015-the-gizmotron-returns-video
  7. Gambaccini, Paul: Liner notes to Consequences (Mercury Records, 1977)
  8. Avis, Tom "The Gizmotron is the strangest guitar device you’ve never heard of" https://ontheaside.com/uncategorized/the-gizmotron-is-the-strangest-guitar-device-youve-never-heard-of/
  9. Avis, Tom "The Gizmotron is the strangest guitar device you’ve never heard of" https://ontheaside.com/uncategorized/the-gizmotron-is-the-strangest-guitar-device-youve-never-heard-of/
  10. Provoost, Bart, "What the heck is that?! Behind the scenes of the weirdly wonderful gizmotron, in Gearphoria pp 24-25, SEP/OCT 2014 Vol 3 No 1 http://www.gearphoria.com/e-mag/v3n1/24
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