Amperite 4H3 Ballast Tube NOS

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  • Quantity: 2

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Price: $4.99 / piece
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B65

Amperite 4H3
The Amperite automatic current regulator is a reliable current regulating device, which
can maintain a constant current in a circuit over a very wide range of input voltages. It consists of a resistance wire with a positive temperature coefficient of resistance, hermetically sealed in a bulb containing hydrogen or helium gas. The resistance of this element will automatically increase or decrease in accordance with the change of temperature in the unit to maintain a very accurate current level.






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