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Displaying 161 to 180 of 655 records

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Heading Date Maker Place Materials Inv Num
View Record Radio Valve Type P2 20th Century Unknown Unknown Glass, bakelite?, steel, assorted metals. 48561
View Record Siemens & Halske Experimental Radio Valve c. 1917 Siemens & Halske. Germany Glass, bakelite?, steel, assorted metals. 50748
View Record Image Orthicon Tube Mid 20th Century English Electric Valve Co. Ltd. England Glass, bakelite?, steel, nickel, assorted metals. 39508
View Record Lamps For Large Switchboard Type 95 1920s Unknown England Glass, brass, assorted metals. 40261
View Record American-Type Radio Tube 20th Century Unknown USA Glass, brass, bakelite?, assorted metals. 92814
View Record Fama Radio Valve Type R c. 1916 Fama. Holland Glass, brass, bakelite?, assorted metals. 73073
View Record American-Type Radio Tube 20th Century Unknown USA Glass, brass, bakelite?, assorted metals. 92559
View Record American-Type Radio Tube 20th Century Unknown USA Glass, brass, bakelite?, assorted metals. 31425
View Record American-Type Radio Tube 20th Century Unknown USA Glass, brass, bakelite?, assorted metals. 36535
View Record Bank Of Six Leyden Jar Condensers 1900 Unknown Unknown Glass, brass, mahogany, felt. 17579
View Record Bank Of Six Leyden Jar Condensers 1900 Unknown Unknown Glass, brass, mahogany, teak?, felt. 24931
View Record American-Type Radio Tube 20th Century Unknown USA Glass, brass, plastic?, assorted metals. 93609
View Record GPO Radio Valve Type No 2 20th Century Unknown Britain Glass, brass, plastic?, nickel. 26614
View Record Assorted Spare Parts For Radio Receiver Type BC342N 1940s Chicago Transformer Corporation. USA Glass, brass, steel, bakelite, assorted metals. 72568
View Record 12 Volt Fleming Valve c. 1905 Royal Ediswan. London Glass, brass?, assorted metals. 77499
View Record Early Experimental Coherer c. 1902 Unknown Unknown Glass, copper, cork, iron, assorted metals. 19433
View Record Early Coherer c. 1899 Unknown Chelmsford, England Glass, copper, nickel, silver, assorted metals. 34674
View Record Early Coherer c. 1899 Unknown Unknown Glass, copper, nickel, silver, assorted metals. 17473
View Record Early Coherer c. 1899 Unknown France Glass, copper, nickel, silver, assorted metals. 57633
View Record Early Coherer c. 1899 Unknown England Glass, copper, nickel, silver, assorted metals. 72143

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