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SCO PENT

Inventory NumberVT1157
ClassificationVacuum Tube
Cultural Region
    Place of Origin
      Description6AS6/409A
      Signedon glass: 6AS6 / Western / Electric / 409A / MADE IN U. S. A.
      FunctionAmplifier etc
      Historical AttributesThis tube is found in a collection of tubes that David P. Wheatland used in the 1940s to teach radio engineering. The cluster is mounted on a wooden board. A tag in Mr. Wheatland's hand reads: TUBES USED IN DEMONSTRATION CONFERENCE N.T.S. COMMUNICATIONS - RADIO ENG. FOR 12 CLASSES ABOUT FEB 1942 TO JAN '43 BY DPW. [Some tubes with the group are identified as donated later--e.g. VT1152--and presumably replace original ones in the holes.]
      WE HF SCO PENT
      Western Electric Company
      Date: after 1948
      Object number: VT1158
      Western Electric Company
      Date: after 1948
      Object number: VT0025
      General Electric Company
      Object number: VT2848
      General Electric Company
      Object number: VT2664
      General Electric Company
      Object number: VT4505
      SCO PENTODE
      Western Electric Company
      Date: 1943
      Object number: VT1185
      Western Electric Company
      Date: 1943
      Object number: VT2709
      Western Electric Company
      Date: 1943
      Object number: VT4210
      Western Electric Company
      Date: 1943
      Object number: VT4208
      Western Electric Company
      Date: 1943
      Object number: VT4209
      Western Electric Company
      Date: 1943
      Object number: VT4211
      Raytheon Manufacturing Company
      Object number: VT2854