Sound follower
RECORDING DEVICE
Separate magnetic; Sepmag; Magnetic Film Recorder; Magna-Tech; Magna Tech; Mag dubber
A sound follower, also referred to as separate magnetic, sepmag, magnetic film recorder, or mag dubber, is a device for the recording and playback of film sound that is recorded on magnetic film.Audio post production for television and film an introduction to technology, By Hilary Wyatt, Tim Amyes, page 73Georgia State University, How record heads work.