Mercury Rectifiers
UNTIL recently the full and _haitfwave rectifiers were used for all purposes, but for high-power work little can compare with the hot cathode mercury vapour rectifiers, which can be increased in size to enable railroads. to he operated At present most hot cathode vapour rectifiers are used in radio transmitters, some of which are rated as high as 40,000 volts. The voltage drop in these valves is of the order of only 10 volts, consequently they can be used with all but the lowest voltages and there are even hopes of producing yalves with a drop of only two volts. These valves have a long life in comparison with other rectifiers.
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https://paperspast.natlib.govt.nz/periodicals/RADREC19310821.2.56.5
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Radio Record, Volume V, Issue 6, 21 August 1931, Page 31
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113Mercury Rectifiers Radio Record, Volume V, Issue 6, 21 August 1931, Page 31
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