Magnetic tape sound recording and reproducing systems - Part 1: General conditions and requirements (IEC 60094-1:1981 + A1:1994); German version EN 60094-1:1993 + A1:1994— 16 стр.
Methods of measurement for broadcast video tape recorders - Part 3: Electrical measurements for analogue component video signals (IEC 61237-3:1995); German version EN 61237-3:1995— 25 стр.