SB-170

From RadioNerds
Jump to navigation Jump to search

References

  • TM 11-2147 Power Switchboard SB-170/FTC Telephone Distribution Frame TA-193/ FTC Telephone Relay Racks TA-190/FTC, TA-191/FTC and TA-192/FTC. Dept. of the Army and the Air Force. Jun. 1953. 1 v. (various pagings) U408.3.A13 TM 11-2147 Jun. 1953