Six Westinghouse copper oxide rectifiers
Six Westinghouse copper oxide rectifiers: H25 with HT supply (c.1940); WX6 used in radios (c.1939); four other of unknown manufacturer and type
Six Westinghouse copper oxide rectifiers: H25 with HT supply (c.1940); WX6 used in radios (c.1939); four other of unknown manufacturer and type