NOS Buis tube VT127 CV1127 PEN46 Radiobuis valve

The VT127 is an early television line output pentode valve.

This example was made in USA for the RAF and also carries the Air Ministry Logo.
In line scan duty high surge voltages appear, this valve can withstand an anode surge of 3,000 Volts.
The box anode is supported on ceramic insulators. The two inner grids are supported on notched copper rods. The suppressor grid appears to be beam plates in this valve.

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