MIL-S-19500/372 Complete Document History
Semiconductor Device, Thyristor (Controlled Rectifier), Silicon Types 2N4199 through 2N4206

Complete Current Edition:
   REVISION A - SEMICONDUCTOR DEVICE, THYRISTO - Feb. 5, 1968
   REV A VALIDATION 1 - VALIDATION NOTICE 1, REV A - Sept. 30, 1988
   REV A AMENDMENT 6 - AMENDMENT 6 FOR REVISION A - Sept. 2, 1991
   REV A INACTIVATION 1 - GROUP INACTIVATION NOTICE 1 FOR REVISION A - June 7, 1999
   REV A VALIDATION 2 - VALIDATION NOTICE 2, REV A - March 24, 2004
   REV A VALIDATION 3 - VALIDATION NOTICE 3, REV A - July 8, 2011
   REV A VALIDATION 4 - VALIDATION NOTICE 4 FOR REVISION A - May 5, 2017

Obsolete Revision Information:
   REV A AMENDMENT 5 - AMENDMENT 5 FOR REVISION A - June 22, 1977