Peter Frampton's fame came partially from his use of the 'talk box'. I've never truly understood the instrument. Is he just talking into a gizmo? What's so hard about that? - Quora
The Curious Tale of the Talk Box: Where Man and Woman Meets Machine. | GuitarPlayer
Five Guitarists Who Used The Talk-Box The Right Way - Mirth Films
The WRONG Way to Use a Talk Box - tonefiend.com
Peter Frampton's fame came partially from his use of the 'talk box'. I've never truly understood the instrument. Is he just talking into a gizmo? What's so hard about that? - Quora
Framptone Talk Box with Tube | Reverb
Heil Talk Box | Vintage Guitar® magazine
Talk Box' Legend Peter Frampton Announced for Central NY Concert
Peter Frampton performing with a talk box in 1975 : r/OldSchoolCool