Westinghouse Silverstat Voltage Regulators Manual Data 31-260 1940; 1944 Reprint This copy is marked "December 1940" (upper left) and states that it supersedes an April 1938 issue. Front cover, lower left, is marked "Reprint 11-44," indicating a November 1944 printing of the December 1940 edition. byJuly 5, 2026
