Transistor Millivoltmeter TR-1451

Telmes Szövetkezet (TEL-MES); Budapest

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  • Year
  • 1968–1971 ?
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 152191

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

 Technical Specifications

  • Number of Transistors
  • 11
  • Semiconductors
  • Wave bands
  • - without
  • Power type and voltage
  • Line / Storage batteries (perhaps also batteries) / 40-60 Hz, 100 - 240 / 18 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Transistor Millivoltmeter TR-1451 - Telmes Szövetkezet TEL-MES;
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 150 x 230 x 170 mm / 5.9 x 9.1 x 6.7 inch
  • Notes

  • The Transistor Millivoltmeter TR-1451 has a frequency range from

    • 10 Hz to 300 kHz ±5% or
    • 5 Hz to 500 kHz ±3 dB.

    The level can be measured in 12 ranges from 1 mV (-60 dB) to 300 V (+50 dB) full scale, in 1-3-10 sequence.

    Input impedance (unsymmetrical)

    • > 850 kΩ || ≤ 35 pF from 1 mV to 300 mV
    • ≥ 1 MΩ || ≤ 25 pF from 1 V to 300 V

    Built-in calibrator source.

  • Net weight (2.2 lb = 1 kg)
  • 3.560 kg / 7 lb 13.5 oz (7.841 lb)
  • Literature/Schematics (1)
  • -- Original-techn. papers.

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