VOLTAGE REGULATOR
The 0E3 / OE3 / 85A1 Vacuum tube is a glass Loctal type
used in power supplies. It was first developed in 1938 by
the Sylvania Corporation.
Electrical Data:
Heater Voltage ...................83 to 87 Volts
Heater Current ................... 1 to 8 Milliamps
Prefered Substitutes ............... 85A1, CV431