细节
A Farad rectifier
Type XX, with two valves in frosted glass dome covers on shaped black composition case of Art Deco style -- 8½ in. (22 cm.) wide; and a four-pin loading coil (2)
Type XX, with two valves in frosted glass dome covers on shaped black composition case of Art Deco style -- 8½ in. (22 cm.) wide; and a four-pin loading coil (2)