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Displaying 151 to 250 of 655 records

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Heading Date Maker Place Materials Inv Num
View Record Marconi Radio Valve Type DE6 c. 1925 Marconi-Osram Valves. England Glass, bakelite, brass?, assorted metals. 70143
View Record British-Style Radio Valve 20th Century Unknown Britain Glass, bakelite, nickel, steel, assorted metals. 94143
View Record Marconi Radio Valve Type DER c. 1925 Marconi-Osram Valves. London Glass, bakelite, steel, assorted metals. 15591
View Record Myers Dry Battery Radio Tube With Carton c. 1924 E. B. Myers Co. Ltd. Canada Glass, bakelite, steel, assorted metals. 20141
View Record Myers Dry Battery Radio Tube With Carton c. 1924 E. B. Myers Co. Ltd. Canada Glass, bakelite, steel, assorted metals. 55098
View Record Marconi Radio Valve Type DE3C c. 1924 Marconi-Osram Valves. London Glass, bakelite, steel, tungsten, assorted metals. 20731
View Record Marconi Radio Valve Type DE3C c. 1924 Marconi-Osram Valves. London Glass, bakelite, steel, tungsten, assorted metals. 62393
View Record Communications Receiver Model 910/1 With Speaker Mid 20th Century Marconi International Marine Communication Co. Ltd. England Glass, bakelite, steel?, assorted metals. 98230
View Record Osram Radio Valve Type P2 20th Century Osram. England Glass, bakelite?, steel, assorted metals. 57431
View Record Radio-Special Micro Radio Valve Type E6 20th Century Unknown Unknown Glass, bakelite?, steel, assorted metals. 42700
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
View Record Early Coherer No 217 c. 1899 Unknown Unknown Glass, copper, nickel, silver, assorted metals. 55585
View Record Early Coherer c. 1899 Unknown Unknown Glass, copper, nickel, silver, assorted metals. 88920
View Record Early Coherer c. 1902 Unknown Unknown Glass, copper?, assorted metals. 53061
View Record Leclanche Cell Early 20th Century General Electric Co. Ltd. USA Glass, earthenware?, steel. 78623
View Record 1901 Transatlantic Self-Restoring Coherer c. 1901 Lieutenant Luigi Solari. Italy Glass, ebonite, brass, mercury, iron/carbon. 96386
View Record Early Small Coherer c. 1895 Guglielmo Marconi. Italy Glass, elastic, copper?, assorted metals. 98899
View Record Early Coherer c. 1902 Unknown Unknown Glass, elastic, copper?, steel, assorted metals. 62930
View Record Cluster Of Six Small Glass Tubes c. 1902 Unknown Unknown Glass, elastic, steel, assorted metals. 80963
View Record Tungsram Radio Valve Type P43t-38 With Carton 20th Century Tungsram. France Glass, halogen, steel, ceramic?, copper?, plastic?, assorted metals. 86475
View Record Cold Cathode Ray Tube c. 1902 Unknown Unknown Glass, mahogany, copper, metal. 25358
View Record Marconi Radio Valve Type MT1 c. 1919 Marconi-Osram Valve Co. Ltd. London Glass, nickel, assorted metals. 48681
View Record Marconi Radio Valve Type MT1 Early 20th Century Marconi-Osram Valve Co. Ltd. London Glass, nickel, assorted metals. 46376
View Record Marconi-Osram Radio Valve Type R c. 1923 Marconi-Osram Valve Co. Ltd. London Glass, nickel, plastic?, brass?, assorted metals. 85569
View Record Marconi-Osram Radio Valve Type R c. 1925 Marconi-Osram Valve Co. Ltd. London Glass, nickel, plastic?, brass?, assorted metals. 82041
View Record Marconi-Osram Radio Valve Type DER c. 1923 Marconi-Osram Valve Co. Ltd. London Glass, nickel, plastic?, brass?, assorted metals. 43964
View Record Marconi-Osram Radio Valve Type R c. 1923 Marconi-Osram Valve Co. Ltd. London Glass, nickel, plastic?, brass?, assorted metals. 59257
View Record Experimental Fleming Valve c. 1889 Prof. J.A. Fleming. London Glass, nickel, steel, ebonite, wood. 85593
View Record Fleming Valve c. 1889 Prof. J.A. Fleming. England Glass, nickel, steel, ebonite, wood. 80572
View Record Marconi Radio Valve Type R c. 1916 Marconi's Wireless Telegraph Co. Ltd. England Glass, nickel, steel?, tungsten, assorted metals. 94475
View Record Marconi-Osram Radio Valve Type DET 1A 20th Century Marconi-Osram Valve Co. Ltd. London Glass, nickel-plated, brass, plastic?, assorted metals. 64933
View Record Marconi Radio Valve Type FE2 c. 1922 Marconi-Osram Valve Co. Ltd. London Glass, nickel?, assorted metals. 92775
View Record Marconi Radio Valve Type FE2 c. 1922 Marconi's Wireless Telegraph Co. Ltd. London Glass, nickel?, assorted metals. 68373
View Record Experimental Round Radio Valve Type CA c. 1915 Ediswan. London Glass, oxide, brass?, platinum. 24865
View Record Round Radio Valve Type CA c. 1915 Ediswan. London Glass, oxide, platinum, asbestos, brass, ebonite. 32845
View Record Round Radio Valve Type CA c. 1915 Ediswan. London Glass, oxide, platinum, asbestos, brass, ebonite. 35122
View Record Round Radio Valve Type CA c. 1915 Ediswan. London Glass, oxide, platinum, asbestos, brass, ebonite. 13117
View Record Marconi-Osram Radio Valve Type R c. 1923 Marconi-Osram Valve Co. Ltd. London Glass, phosphorous, nickel?, plastic?, steel, assorted metals 22908
View Record Ship's Direction Finder 1920s Unknown Unknown Glass, plastic, bakelite, teak?, copper, assorted metals. 35780
View Record National Union Radio Tube Type 35Z5GT With Carton c. 1942 National Union. USA Glass, plastic, steel, assorted metals. 80623
View Record Puratone Rubon Radio Valve 1924 Puratone Rubon. Britain Glass, plastic, steel, assorted metals. 31417
View Record Marconi Radio Valve Type MH4 1930s Marconi-Osram Valves. London Glass, plastic?, nickel, steel, assorted metals. 24996
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 44487
View Record Hivac Radio Valve Type CV1052 Mid 20th Century Hivac. England Glass, plastic?, steel, assorted metals. 28126
View Record Radio Valve Type VR112 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 71648
View Record Radio Valve ARP12-Type Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 36764
View Record Radio Valve Type ATP4 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 15492
View Record Radio Valve Type AR8 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 71310
View Record Radio Valve Type 6N7G Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 41408
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 69910
View Record Radio Valve Type ARTP2 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 76654
View Record Radio Valve Type VU120A Mid 20th Century Unknown Unknown Glass, plastic?, steel, assorted metals. 53371
View Record Ken-Rad Radio Tube Type 6SN7GT Mid 20th Century Ken-Rad. USA Glass, plastic?, steel, assorted metals. 81227
View Record Mazda Radio Tube Type AR8 c. 1938 Mazda. England Glass, plastic?, steel, assorted metals. 86462
View Record RCA Radiotron Cunningham Radio Tube Type 6B7 20th Century RCA. USA Glass, plastic?, steel, assorted metals. 15130
View Record STC Radio Tube Type 6J5G Mid 20th Century Standard Telephones and Cables Ltd. (STC). England Glass, plastic?, steel, assorted metals. 59723
View Record Brimar Radio Valve Type 6V6GT 1940s Brimar. England Glass, plastic?, steel, assorted metals. 64011
View Record Radio Valve Type 6V6G Mid 20th Century Mullard. England Glass, plastic?, steel, assorted metals. 48716
View Record Mullard Radio Valve Type ECC35 20th Century Mullard. Britain Glass, plastic?, steel, assorted metals. 96920
View Record Radio Valve Type CV1342 1950s Unknown Britain Glass, plastic?, steel, assorted metals. 91546
View Record National Union Radio Tube Type 50L6GT With Carton c. 1941 National Union. New Jersey, USA Glass, plastic?, steel, assorted metals. 47236
View Record National Union Radio Tube Type 12SA7GT With Carton c. 1942 National Union. New Jersey, USA Glass, plastic?, steel, assorted metals. 30961
View Record RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton 20th Century RCA. New Jersey, USA Glass, plastic?, steel, assorted metals. 98935
View Record Mazda Radio Valve Type CV6 With Carton 20th Century Mazda Company. Unknown Glass, plastic?, steel, assorted metals. 38616
View Record Radio Valve Type ATP4 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 70312
View Record RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton 20th Century RCA. New Jersey, USA Glass, plastic?, steel, assorted metals. 78432
View Record RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton 20th Century RCA. New Jersey, USA Glass, plastic?, steel, assorted metals. 49234
View Record RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton 20th Century RCA. New Jersey, USA Glass, plastic?, steel, assorted metals. 20953
View Record Marconi Radio Valve Type LF2 20th Century Marconi's Valves. Britain Glass, plastic?, steel, assorted metals. 74966
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 29233
View Record RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton 20th Century RCA. New Jersey, USA Glass, plastic?, steel, assorted metals. 70668
View Record RCA Radiotron Radio Tube Type 6B7 With Carton 20th Century RCA. USA Glass, plastic?, steel, assorted metals. 58967
View Record Marconi Radio Valve Type S625 c. 1928 Marconi-Osram Valve Co. Ltd. England Glass, plastic?, steel, assorted metals. 49486
View Record Dario Radio Valve Micro Special Mid 20th Century Dario. France Glass, plastic?, steel, assorted metals. 83471
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 64286
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 23157
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 91673
View Record RCA Radiotron Radio Tube Type 80 With Carton 20th Century RCA. New Jersey, USA Glass, plastic?, steel, assorted metals. 91686
View Record Marconi-Osram Radio Valve Type MPT4 Late 1920s Marconi-Osram Valve Co. Ltd. London Glass, plastic?, steel, assorted metals. 84752
View Record Mullard Radio Valve Type 2D4A Mid 1930s Mullard. Britain Glass, plastic?, steel, assorted metals. 83305
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel. 73031

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