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The CV284 is a voltage stabiliser producing an output voltage of 75 Volts.

The data-sheet describes pin 4 as either connected to the anode or to a priming anode and in this exhibit it is connected to the anode.

The priming anode is provided when the circuit design involves connecting the CV284 to a permanent heavy load shunting the stabiliser. In any case pin 4 should be connected to the other anode pins via a 15 kΩ resistor.

Our other CV284 has mica discs, this one has two sets of heavy ceramic discs as well as mica discs. This is unusual for a 75 Volt stabiliser.

The thin glass tube envelope is 18 mm in diameter, and excluding the B7G base pins is 45 mm tall.

Reference: Data-sheet. Type CV284 was first introduced in 1954. See also 1954 adverts.

Pin Connections

Absolute Maximum Operating Conditions^¶

Thanks to Frank Philipse for supplying the above PDF datasheet.