MIL-T-22821/1 Complete Document History
Tachometer Generator, Type 15IH4A (Heat Compensated)

Complete Current Edition:
   REVISION B - Tachometer Generator, Type 15IH4A (Heat Compensated) - Nov. 28, 1990
   REV B VALIDATION 1 - VALIDATION NOTICE 1 FOR REVISION B - Feb. 6, 2015

Obsolete Revision Information:
   REVISION A - TACHOMETER GENERATOR, TYPE 15I - Aug. 15, 1968