6SN7GT ECC33 B65 british Tungsram/GEC/Osram, fat black base

Description

British Tungsram 6SN7GT, no box.

This tube looks unused but may have seen minor use. Tests excellent with 100%+ on each triode system.

This tube was most likely manufactured by GEC/Osram in the UK for the British Tungsram brand in the 1950ies. It features the typical black fat base, a small ring getter and long grey plates.

Super rare item!

Just one piece available!