Transistorized AC Millivoltmeter VM78

Advance Electronics / Components Ltd.; Hainault, Wrexham

  • Anno
  • 1962 ?
  • Categoria
  • Strumento da laboratorio
  • Radiomuseum.org ID
  • 332673

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 Specifiche tecniche

  • Numero di transistor
  • A semiconduttori.
  • Semiconduttori
  • Gamme d'onda
  • - senza
  • Tensioni di funzionamento
  • Batterie a secco
  • Altoparlante
  • - - Nessuna uscita audio.
  • Radiomuseum.org
  • Modello: Transistorized AC Millivoltmeter VM78 - Advance Electronics /
  • Forma
  • Soprammobile con qualsiasi forma (non saputo).
  • Annotazioni
  •  The VM78 is fully transistorized and is powered by mercury cells, with an accuracy of ±3% over the frequency range of 1kHz to 1MHz. Being independent of mains supply it provides a hum-free performance and enables measurements to be taken on circuits not referred to earth.

    The voltmeter covers from 1mV to 300V AC in twelve ranges and the meter has two overlapping scales and a decibel scale referred to 1mW into 600Ω. Protection against excess input voltages is incorporated on all ranges.

    The input impedance is 2MΩ shunted by between 12 and 30pF according to range.

  • Bibliografia
  • Electronic Engineering, volume 34, July 1962
  • Autore
  • Modello inviato da Pier Antonio Aluffi. Utilizzare "Proponi modifica" per inviare ulteriori dati.

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