Illustrated Media Format Guides

Tefifon

AKA
Tefi
Era
1936–1965
Format
analog
Developed by
Tefi
(Max) Capacity
Small: 18 minutes Medium: 1 hour Large: 4 hours
Size
Small: 4.5 × 8 × 8.5 cm Medium: 4.5 × 9.6 × 11.2 cm Large: 4.5 × 13.5 × 15.7 cm
Fun facts
  • This format used an endless loop plastic band onto which grooves were engraved and played back with a stylus
  • Players were available as standalone devices or combined with radios
  • This format's sound quality was higher than Gramophone discs, but not Microgroove discs