MIL-PRF-27/290 Complete Document History
Transformer, Audio Frequency

Complete Current Edition:
   REVISION C/AM 1 - REVISION C/AMENDMENT 1 INTERFILED - March 17, 2017
   REV C VALIDATION 2 - VALIDATION NOTICE 2 FOR REVISION C - Dec. 16, 2021

Obsolete Revision Information:
   REV C VALIDATION 1 - VALIDATION NOTICE 1 FOR REVISION C - March 23, 2016
   REVISION C - Transformer, Audio Frequency - July 18, 2008
   REVISION B - TRANSFORMER, AUDIO FREQUENCY - April 23, 2003
   REV A VALIDATION 2 - VALIDATION NOTICE 2 FOR REVISION A - Aug. 27, 1992
   REV A VALIDATION 1 - VALIDATION NOTICE 1 FOR REVISION A - April 6, 1987
   REVISION A - TRANSFORMER, AUDIO FREQUENCY - Aug. 7, 1980