VR100, MARCONI, KTW62, 10E/278, AS USED IN, R1155, RAF, LANCASTER RECEIVER

VR100, MARCONI, KTW62, 10E/278, AS USED IN, R1155, RAF, LANCASTER RECEIVER

A very nice example of this valve and lovely to have the envelope marked with the Air Ministry type decal as this type was used extensively in the R1155 receiver.