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wavemeter type 174-C
wavemeter type 174-C

wavemeter type 174-C

Date1920-1935
Inventory NumberRS0242
ClassificationWave Meter
Subject
    Maker General Radio Company 1915-present
    Cultural Region
      Place of Origin
        Dimensions18 x 23 x 15 cm (7 1/16 x 9 1/16 x 5 7/8 in.)
        Material
          DescriptionRectangular black front panel with open back, no case. 4 dials 1 with triangular pointer, 2 circular windows and connectors on front panel. Larger one with galvanometer (scale 0-100, stylized pointer), smaller one with a vertical line and movable scale underneath.

          White wire wrapped coil in back.

          General Radio type 174C, serial number 1232.
          In Collection(s)
          Signedetched and white filled: WAVEMETER / TYPE 174-C SERIAL NO. 1232 / GENERAL RADIO CO. / CAMBRIDGE, MASS. on face of meter: HOT WIRE / GALVANOMETER / MODEL 127 NO. 20402 / GENERAL RADIO CO. / CAMBRIDGE, MASS.
          Curatorial RemarksThis is the same as RS0235 except that it has no box
          FunctionWavemeters can be used to check the wavelength of a strong signal source. It can also check the output of a transmitter for harmonics.

          The output of this instrument is an electric current, which is read using a galvanometer, which is included.
          wavemeter type 174-C
          wavemeter type 174-C
          General Radio Company
          Date: 1920-1935
          Accessories: key tied to handle
          Object number: RS0235
          wavemeter type 174B
          wavemeter type 174B
          General Radio Company
          Date: 1920-1935
          Object number: RS0234
          wavemeter type 174D
          wavemeter type 174D
          General Radio Company
          Date: 1920-1935
          Accessories: key tied to handle
          Object number: RS0229
          direct reading wavemeter model 127
          direct reading wavemeter model 127
          U.S. Army, Signal Corps
          Date: 1920-1935
          Object number: RS0228
          wavemeter type 105D
          wavemeter type 105D
          General Radio Company
          Date: ca. 1920-1930
          Accessories: 6 coils; leather strap; coupler; galvanometer; wooden case; graph (laminated)
          Object number: RS0236
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          General Radio Company
          Date: early 20th Century
          Accessories: diagrams (3)
          Object number: RS0251
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          wavemeter
          General Radio Company
          Date: 1915-1918
          Accessories: loose calendar page with circuit diagram
          Object number: 2012-1-0034
          wavemeter type 558-P
          wavemeter type 558-P
          General Radio Company
          Date: 1915-1930
          Accessories: set of five coils (labelled A - E); tuning variable capacitor
          Object number: RS0233
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          Carmelo Lanza
          Date: circa 1943
          Object number: RS0230
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          General Radio Company
          Date: early 20th Century
          Object number: RS0243a
          precision wavemeter, General Radio model No. 224, Serial No. 113 [?]
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          General Radio Company
          Date: early 20th Century
          Object number: RS0243b
          Wavemeter, Direct Reading, Type S.C. R.60; General Radio Co.
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          General Radio Company
          Object number: RS0783