The 7233 is a low-mu triode vacuum tube with a B9A (Noval) miniature 9-pin base, intended for use as series regulator in power supplies. Electrically, it is similar to one half of a 6080.

It is used in the 132 power supply.

Tek part number: 154-0307-00

Specifications

  • 140 mA max, 7.5 W plate dissipation, -300V to +300V between heater and cathode
  • Heater 6.3 V, 1 A

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