Prolonging Life of Rectifiers
Alt types of rectifying valves should be operated: under conditions that provide good ventilation. Valves of the 80 or 81 variety may be housed in metal cabinets provided holes are drilled in the cabinet. Heavy-duty rectifiers, such as the type 866, shoul not be boxed in a metal cabinet. They should be mounted in breadboard fashion and placed in a safe location where there is free access of air. When their maximum output, it is sometimes necessary to force circulation around the bases by means of an electric fan. With these valves, as with any rectifier valve, the rated filament voltage should be carefully maintained. Running filament at lower than normal specified voltage shortens the life of the valve. All rectifiers of the mereury-vapour type should be given ten or fifteen minutes to heat up before the plate voltage is applicd,
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https://paperspast.natlib.govt.nz/periodicals/RADREC19320701.2.54
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Radio Record, Volume V, Issue 51, 1 July 1932, Page 28
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145Prolonging Life of Rectifiers Radio Record, Volume V, Issue 51, 1 July 1932, Page 28
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