A genuine U.S. Vietnam War era PSM-13 battery test set. This battery testing set would have been essential gear for a radio operator, it allowed the operator to test the overall life remaining in the battery, this set comes with all six connectors to test the following batteries: Adapter: U-240 (batteries: BA-279/U BA-377/U, for PRC-8, PRC-9, PRC-10, PRC-26, PRC-28 PRC-50, PRC-51). Adapter: U-314 (battery BA-399 for PRT-4). Adapter: U-315 (batteries: BA-505/U BA-4504/U for PRR-9). Adapter: U-297/PSM-13 (batteries: BA-386 for PRC-77 & PRC-1077). This complete tester unit set comes with its canvas storage bag that has ALICE clips to bag and a carry handle. Rare item to find in the UK.