• Year
  • 1947
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 307054

 Technical Specifications

  • Number of Tubes
  • 6
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 115 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Z-Angle Meter 310-A - Technology Instruments
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • RF impedance bridge. At the balance the meter directly reads phase angle.

    • Impedance range from 0.5 to 100.000 ohms
    • Phase angle from -90 to 90 degrees
    • Frequency range: 30 to 20.000 Hz
    • Accuracy: 1% impedance, 2% phase

    The 310A was first advertised in 1947. Early production used a couple of 6SJ7 in the RF input stages. From 1948 they were replaced by the RCA 'special red' 5693 types.

    The Z-Angle Meter was designed by Luke Packard, who left General Radio to co-found the Technology Instruments Corporation.

    The General Radio style in present in the shape of the set, in that of the meter, of the knobs and in every constructive details.

     

  • Mentioned in
  • -- Original prospect or advert
  • Author
  • Model page created by Emilio Ciardiello. See "Data change" for further contributors.

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