Vacuum Tube - 0C2, Voltage Regulator, miniature
New-Old-Stock (NOS) tube
The 0C2 is a cold cathode, gas-filled diode of miniature construction designed for use as a voltage regulator. It has an operating current range of 5 to 30 milliamperes over which it maintains a substantially constant operating voltage of 75 volts. Three cathode pins are provided which may be used to disconnect the load when the tube is removed from the socket.