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0B3 Vacuum Tube New and Used

$4.50
0B3 Vacuum Tube New and Used
0B3 Vacuum Tube New and Used

Home / Shop

0B3 Vacuum Tube New and Used

$4.50
Model Number: 0B3NEW
0B3 voltage regulator vacuum tube for stable 90V reference operation.
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Categories: Vacuum Tubes and Accessories
Manufacturer: Multiple Manufacturers
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  • Description
  • Specifications

The 0B3 is a gas-filled cold cathode voltage regulator vacuum tube designed to maintain a stable 90-volt reference output in vintage power supplies, industrial electronics, and antique electronic equipment. It operates by drawing current within a specified range to stabilize DC voltage against line and load variations in classic circuit designs. Available in new and used condition for vintage equipment restoration.

  • Component Type: Gas-filled cold cathode voltage regulator vacuum tube

  • Condition Availability: New and used options

  • Nominal Regulated Voltage: 90 volts

  • Operating Current Range: Typically 5mA to 40mA

  • Application: Vintage power supplies, antique radio chassis, and test equipment regulation circuits

  • Function: Maintains a constant reference DC voltage across varying load and input conditions