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De Forest Audiotron Radio Valve, by De Forest, Early 20th Century
Inventory Number: 99552
Date: Early 20th Century
Maker Details: Attributed to De Forest.
Inscription: None
Size: 100 mm in overall length
Materials: Copper?, glass, assorted metals.
Other Given Number(s): Christie's 200.
Notes:
De Forest Audiotron Radio Valve, in cylindrical form with interior copper? coil with metal band around interior of tube. With assorted wires.
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