Palmavox 724 44545

Palmavox (Brand), F.J. Palmer & Son Ltd.; Sydney NSW

Dati
Forum
Immagini
Collezioni

  • Anno
  • 1949–1952
  • Categoria
  • Radio (o sintonizzatore del dopoguerra WW2)
  • Radiomuseum.org ID
  • 312535

 Specifiche tecniche

  • Numero di tubi
  • 3
  • Principio generale
  • A circuiti accordati (TRF o amplif. diretta in generale)
  • Gamme d'onda
  • Solo onde medie (OM).
  • Tensioni di funzionamento
  • Alimentazione a corrente alternata (CA) / 240v Volt
  • Altoparlante
  • AP magnetodinamico (magnete permanente e bobina mobile) / Ø 4 inch = 10.2 cm
  • Materiali
  • Bachelite
  • Radiomuseum.org
  • Modello: Palmavox 724 44545 - Palmavox Brand, F.J. Palmer &
  • Forma
  • Soprammobile compatto/con bordi arrotondati/midget senza pulsantiera/tastiera.<= 35 cm (Sometimes with handle but for mains only).
  • Dimensioni (LxAxP)
  • 200 x 120 x 110 mm / 7.9 x 4.7 x 4.3 inch
  • Annotazioni

  • Titan made this Palmavox radio for Palmers department store (F.J. Palmers & Sons, Sydney).

    The TRF circuit uses the 6N8 as the RF Amplifier & Detector, the VR91 as a high gain Audio Amplifier driving a 4 inch Speaker and a 6V4 Rectifier valve. The high tension voltage is obtained by direct rectification of the 240 volt mains (no transformer). The low tension voltage for the valve filaments & dial light is taken from a small transformer.

    Although this radio uses a power transformer it only supplies the valve heaters and dial lights. The Active line connects directly to the 6V4 Rectifier valve, then goes to Ground (Chassis) via the filament Transformer winding. The chassis is connected to one side of the mains and may be "live". We do NOT always state such cases - since often the uploader does not know.

    The ON/OFF switch is then operated from the Volume Potentiometer (On/Off/Volume), and the chassis is completely insulated from the Cabinet & Volume & Tuning knobs via the insulated screws on the back Fibre Board cover.

    The circuit is similar to the “TITAN TINY”

    Cabinet available in six shades.

  • Peso netto
  • 2.5 kg / 5 lb 8.1 oz (5.507 lb)
  • Prezzo nel primo anno
  • 14.75 AUS £
  • Bibliografia
  • HRSA Radio Waves Magazine July, 2008 "Three Babies" by David Bond, Page 36, Palmavox
  • Letteratura / Schemi (1)
  • Radio Days: Australian Bakelite Radios by Peter Sheridan, Page 203
  • Letteratura / Schemi (2)
  • Silicon Chip Magazine, Vintage Radio, "TITAN Tiny", by Rodney Champness, Page 86-90
  • Autore
  • Modello inviato da Bruce Wilkie. Utilizzare "Proponi modifica" per inviare ulteriori dati.

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Il modello Palmavox 724 fa parte delle collezioni dei seguenti membri.

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