Ondolina 412 DC 110V

SBR Société Belge Radio-Electrique, Bruxelles

Dati
Forum
Immagini
Collezioni

  • Anno
  • 1930
perfect model
  • Categoria
  • Radio (o sintonizzatore del dopoguerra WW2)
  • Radiomuseum.org ID
  • 228702

 Specifiche tecniche

  • Numero di tubi
  • 4
  • Principio generale
  • A circuiti accordati (TRF o amplif. diretta in generale); Neutrodina (con neutrocondensatore)
  • Gamme d'onda
  • Onde medie (OM) e onde lunghe (OL).
  • Tensioni di funzionamento
  • Alimentazione a corrente continua (CC) / 110 Volt
  • Altoparlante
  • Altoparlante magnetico (a spillo)
  • Materiali
  • Mobile in legno
  • Radiomuseum.org
  • Modello: Ondolina 412 [DC 110V] - SBR Société Belge Radio-
  • Forma
  • Soprammobile verticale (sviluppato in altezza; no cattedrale, sin decorazioni).
  • Annotazioni
    • Internally, the radio is divided into 2 sections: the radio in the bottom half and the power supply in the top half of the housing.
    • In case of the batteries version, the power supply section is left empty to make room for the (storage) batteries. This version has a control voltmeter with a push button on the left side for the filaments.
    • The AC mains version has an "Oxymétal"1 rectifier. There is a rheostat, a push button and a voltmeter on the primary side of the mains transformer to compensate for voltage changes and a current regulator to keep the filament current constant.
    • The DC mains 110V version and the DC mains 220V version have an internal resistor block to adjust to the mains voltage and a rheostat with a push button and a voltmeter to compensate for voltage changes; also a current regulator to keep the filament current constant.
    • There is a tone control on the backside.
    • There is an alternative tubeset from Dario: R81 , R76 , R76 , R77.
    • All versions of this radio still need an internal 15V negative grid voltage battery ("C" battery).
    • The soffit lamp on the back of the power supply is a current regulator.

    1 "Oxymétal" (copper oxyd) rectifier.

  • Autore
  • Modello inviato da Dirk Bladt. Utilizzare "Proponi modifica" per inviare ulteriori dati.

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