MIL-STD-2179 Complete Document History
Helical Digital Recording Format for 19-mm Magnetic Tape Cassette Recorder/Reproducers

Complete Current Edition:
   REVISION B - HELICAL DIGITAL RECORDING FORM - Dec. 14, 1990
   REV B INACTIVATION 1 - INACTIVATION NOTICE 1, REV B - Oct. 30, 1998

Obsolete Revision Information:
   REVISION A - HELICAL DIGITAL RECORDING FORM - Dec. 24, 1987
   NOTICE 1 - NOTICE 1 FOR BASE - July 1, 1987
   BASE - HELICAL DIGITAL RECORDING FORM - Jan. 30, 1987