This standard specifies the classification, model, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage requirements of permanent magnet DC motors for tape recorders. This standard applies to permanent magnet DC motors for Class B and C portable tape recorders with a tape width of 3.81mm.
SJ/T 11049-1996 history
2002SJ/T 11049-2001 Motors for recorders,permanent magnet D.C.,general specification for
1970SJ/T 11049-1996 Motors for recorders,Permanent magnet D.C.--General specification for