Coulomb the volt was defined as the potential difference [i.e., what is nowadays called the "voltage (difference)"] across a conductor when a current of one ampere dissipates one watt of power. The coulomb (later "absolute coulomb" or "abcoulomb" for disambiguation) was part of the EMU system of units. The "international coulomb" based on laboratory specifications for its measurement was introduced by the IEC in 1908. The entire set of "reproducible units" was abandoned in 1948 and the "international coulomb" became the modern Coulomb. The proposed redefinition of the ampere and other SI base units would fix the numerical value of the
USS Ampere equipment was transferred to "USS Surfbird", a minesweeping vessel which was redesignated a degaussing ship on 15 June 1957. She remained in reserve in the Far East until the summer of 1961, when the decision was made to dispose of her. Her name was struck from the Naval Register on 1 July 1961, and she was sold on 21 June 1962, to the Philippine President Lines of Manila. Her final disposition is unknown. USS Ampere USS "Ampere" (PCE-919/AM-359/YDG-11/ADG-11) was originally planned as a for the United States Navy, "PCE-919", and laid down as an , named "Drake", for the male