0B2 Voltage Regulator Tube – Cold-Cathode Gas Regulator (108V)

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The 0B2 is a cold-cathode, gas-filled voltage regulator tube that holds a steady 108V reference — among the tightest-regulating tubes in the miniature 0-series family. Tube type: C old-cathode gas voltage regulator Base: 7-pin miniature Heater: None (cold-cathode, gas-ionization type) Typical use: Voltage reference/regulation in vintage radio, instrument, and amplifier power supplies Part of the 0A2/0B2/0C2 family of 7-pin miniature-base regulators. Show more