VALVE 58

58 = VT-58 = UZ58A = UZ-58A = NU-58L = A258 = ER58 = 258 = W2162 = PH58 = PH258 = VT156_GPO = C58 = CV1705 = NU-58 = T-58 Similar valves Other shape (e.g. bulb type) : 58S ; G-58-S; M58 Replaced normally - small diff.: 38058; 58E Other class quality (otherwise equal): CV613 ; NU-58S Heater different: 6D6 Heater and shape different: 58AS Other base: 58_Coronet First series Aug.1931 70 Years of Radiotubes and V. model RCA with this tube was late April 1932. Replaces models 51 Evoluzioni 78 6D6 58A