Catalogue
573 of 655 records previous / next
Audion Radio Valve, by De Forest, USA, c. 1907
Inventory Number: 90974
Date: c. 1907
Maker Details: Attributed to Lee De Forest.
Inscription: None
Size: 75 mm in overall length
Materials: Glass, assorted metals.
Other Given Number(s): Christie's 196, Science Museum Laon 1924-409.
Notes:
Single-Wing Audion Triode Radio Valve, with defective base connection. Attributed to Dr Lee De Forest and his first triode experiments of 1907 in Denman, Vol II (p 74).
573 of 655 records previous / next
Record mode: Basic | Medium Images | Large Images | Documents (1)