Description

The IV-18 is a Russian multi-digit tube, which contains eight separate seven segment displays in a single envelope. Each digit has a decimal point, as well as its own separate control grid for multiplexing. The tube also has a separate overflow indicator digit that is half the width of the numerical digits. It should be noted that while it is common to blindly refer to all Soviet tubes as being manufactured by 'Sovtek', the example shown here was actually manufactured by Orzep.

Photos

Soviet Orzep IV-18

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