Magnetic Reference Laboratory
Appearance
Magnetic Reference Laboratory (MRL) is an American company founded in 1972 that makes and sells Calibration Tapes[1] for analog audio magnetic tape reproducers in the Open Reel format.
Origins
In 1972 John G. McKnight was laid off from Ampex, as was Tony Bardakos, who was making the calibration tapes for Ampex at the time. Along with Ed Seaman (also an ex-Ampex employee), McKnight and Bardakos decided to start their own business, and thus Magnetic Reference Lab (MRL) was born in 1972.[2]