The CV5412 is a sub-miniature indicator designed for computer applications.
The anode is a wire wound grid coated with a phosphor that gives a bright blue-green glow. The intensity of the display is proportional to the anode current.
The base wires with remaining supports poking through the hard glass base.
The single strand coated filament is seen at the left side.
The anode is a phosphor coated helix.
The thin glass tube envelope is 5.25 mm in diameter, and excluding the base wires is 27 mm tall.
References: Data-sheet & 3002. Type CV5412 was first introduced in 1957. See also1957 adverts.
