mercury-arc rectifier BrE termin techniczny
mercury-vapor rectifier AmE termin techniczny
pool-cathode mercury-arc rectifier termin techniczny
mercury-pool rectifier termin techniczny

Inside that room was the great bank of mercury-vapor rectifiers.

The technology of rotary converters was replaced in the early 20th century by mercury-vapor rectifiers, which were smaller, did not produce vibration and noise, and required less maintenance.

Gas rectifiers, which predated vacuum tubes, such as the argon-filled General Electric "Tungar bulb" and the Cooper-Hewitt mercury-pool rectifier, also provided an influence.