Direct Capacitance Bridge 75D

Boonton Electronics Corp. (BEC); Morris Plains, NJ

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  • Year
  • 1967 ??
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 331727

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 9
  • Number of Transistors
  • 3
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 105-125 or 210-250 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Direct Capacitance Bridge 75D - Boonton Electronics Corp. BEC;
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 19.5 x 11.25 x 12.75 inch / 495 x 286 x 324 mm
  • Notes

  • a) Measurements:

    • Capacitance range: 0 to 1000 pF
    • Inductance range: 25 uH to 25 mH
    • Conductance range: 0 to 1000 umhos
    • Resistance range: 1 k to 100 M

    b) Test signal:

    • Frequency: 1 MHz (+-100 Hz) crystal controlled
    • Level: continuously adjustable from 250 mV to 1 mV

    c) DC Bias:

    • Internal: continuously adjustable from -6 V to +150 V
    • External, 2 terminal: up to +- 400 V at 100 mA from HI pot to LOW post
    • External, 3 terminal: up to +- 400 V at 100 mA from HI pot to ground, or from LO to ground. (total potential from HI and LOW posts to ground not to exceed 400 V at 100 mA)

    d) Power Consumption: 50W.

  • Net weight (2.2 lb = 1 kg)
  • 35 lb 0 oz (35 lb) / 15.890 kg
  • Mentioned in
  • -- Original-techn. papers.

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