Lenhoff & Robertson 2019, p. 170: "Also in 1966, Vox introduced one of its most inventive and unique products, the Guitar Organ. It was a version of the Vox Phantom guitar that included the sound generating technology of the Continental organ. ... The organ section had six tone generators, one for each of the guitar strings. Electronic contacts were built into each of the frets, and tones were produced when any of the guitar strings was depressed to touch a fret. ... / In 1965, a sample was given to The Beatles by Vox, and the company told reporters that John Lennon was practicing with it, and The Beatles' next album would feature it. “We hope that with in a few months, they're going to be spreading it all over the world,” Tom Jennings said in a television interview. But that didn't happen. Lennon liked it enough to keep it, but apparently not enough to ever use it on a Beatles recording session. ..." Lenhoff, Alan S.; Robertson, David E. (2019). "Vox Continental - The voice of the British Invasion". Classic Keys: Keyboard Sounds That Launched Rock Music. University of North Texas Press. p. 170. ISBN978-1-57441-786-9.
Billboard 1967, p. 16, 'Guit-Organ' From Texas Company: WACO, Tex. Murrell Electronics here has introduced new combo instrument concept that plays like a guitar, sounds like an organ, a guitar or a guitar and organ combined.. The firm calls the instrument a "GuitOrgan." / The firm, new to the instrument business, is expected to introduce a complete line of professional-quality guitars and amplifiers soon. All will be usable with the GuitOrgan tone generator. / The complete outfit consists of a guitar with electronically modified fret board, a solid state organ-tone generator with Baldwin components and a foot expression pedal. The tone generator has 10 tone-selector stop tabs."'Guit-Organ' From Texas Company". Billboard. Vol. 79, no. 33. 1967-08-19. p. 16.
