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Lissen only briefly made their own valves, for most of the life of the name the valves were made for them.
The SG in the type designation probably refers to it being a screen grid valve, or tetrode.
The metalised balloon envelope is 43 mm in diameter and, excluding the B4 base pins, is 110 mm tall.
This exhibit was last updated on 21 October 2001
The SG in the type designation probably refers to it being a screen grid valve, or tetrode.
The metalised balloon envelope is 43 mm in diameter and, excluding the B4 base pins, is 110 mm tall.
This exhibit was last updated on 21 October 2001
This exhibit was last updated on 21 October 2001 |