Tuning Head VH-12

Watkins Johnson Company, Gaithersburg (MD)

Dati
Forum
Immagini
Collezioni

  • Anno
  • 1970 ?
  • Categoria
  • Modulo per radio post 1925 (non un particolare, nessun tasto)
  • Radiomuseum.org ID
  • 364598

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 Specifiche tecniche

  • Numero di transistor
  • A semiconduttori.
  • Semiconduttori
  • Principio generale
  • Circuito Wadley-Loop (inclusa supereterodina a doppia conversione); ZF/IF 21400 kHz
  • Gamme d'onda
  • Gamme d'onda nelle note.
  • Tensioni di funzionamento
  • Fornita mediante altra unità o unità principale.
  • Altoparlante
  • - - Nessuna uscita audio.
  • Materiali
  • Mobile di metallo
  • Radiomuseum.org
  • Modello: Tuning Head VH-12 - Watkins Johnson Company,
  • Forma
  • Chassis o in scatola da montaggio
  • Dimensioni (LxAxP)
  • 3 x 3.12 x 15.25 inch / 76 x 79 x 387 mm
  • Annotazioni

  • The Type VH-12 Tuning Head is designed to operate as a plug-in module with the Types 205 and 205-2 Receivers. The unit tunes the frequency range of 60 to 120 MHz and provides a 21.4-MHz IF output for the receiver. The tuning head can be manually or electrically tuned depending upon the operating mode of the 205 Series Receivers. A front panel tuning knob and tape dial are provided for use in the manual tuning mode and a tuning voltage range of +10.3 to -10.3 volts from the receiver will tune the unit from the low band limit to the high band limit.

    The tuning head consists of a voltage tuned RF amplifier and local oscillator, mixer, IF amplifier, and circuits to shape the tuning voltage input from the receiver to provide a linear volts versus frequency tuning curve for the unit. In additon to the 21.4-MHz IF output, buffered local oscillator output and a five wire code are provided for operation of the accessory DRO-308 Counter, DRX-308 Digital Readout Extender, and VM-105 Marker Accessory. Additional jumper wires in the VH-12 select the appropriate IF bandwidths for both the PAN and SECTOR operating modes of the 205 Receiver.

  • Peso netto
  • 3.5 lb (3 lb 8 oz) / 1.589 kg
  • Bibliografia
  • - - Manufacturers Literature (Instruction Manual for Type VH-12 Tuning Head, Watkins-Johnson, p/n M/200/7/11/75/CSE)
  • Letteratura / Schemi (1)
  • - - Manufacturers Literature (Receiving Equipment Condensed Catalog, Watkins-Johnson, May 1970, pages 4-5)
  • Autore
  • Modello inviato da Pius Steiner. Utilizzare "Proponi modifica" per inviare ulteriori dati.

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