MIL-T-27/290 Revision A, August 7, 1980
TRANSFORMER, AUDIO, FREQUENCY, TF5S21ZZ
Includes all amendments and changes through Validation Notice 2, August 27, 1992
Additional Comments: RENUMBERED AS MIL-PRF-27/290
This specification is approved for use by all Departments and Agencies of the Department of Defense.
The complete requirements for procuring the transformer described herein shall consist of this document and the latest issue of Specification MIL-T-27.