Silica, hard vacuum

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Silica, hard vacuum, therimionic triode valve: K865/NT41A M101
Science Museum Group
© The Board of Trustees of the Science Museum

Silica, hard vacuum, therimionic triode valve: K865/NT41A M101

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Category:: Electronic Components

Object Number:: 1992-421

type:: valve

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Silica, hard vacuum

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