A very large tube for measuring devices, manufactured by RFT from East Germany, is an extraordinary example of a precise electronic component from the Cold War period. Measuring approximately 40 cm, this impressive tube was intended for use in oscilloscopes and other measuring devices that required reliable and accurate components. Its size and construction testify to the technological advancement of those times, as well as the attention to quality workmanship.

This tube is new, unused, which makes it a unique find for collectors and enthusiasts of technical history. It is in its original box, which further emphasizes its authenticity and collector's value.