Difference between revisions of "AN~TTC-7"
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==Components== | ==Components== | ||
* [[SB-249]] | * [[SB-249]] | ||
| + | * [[TA-257]] | ||
==References== | ==References== | ||
* TM 11-2146 Telephone Central Office AN~TTC-7, Depts of the Army and Air Force, Jan.1, 1958 | * TM 11-2146 Telephone Central Office AN~TTC-7, Depts of the Army and Air Force, Jan.1, 1958 | ||