4445A Model 9A variometer tuned

Atwater Kent Mfg. Co.; Philadelphia, USA

  • Anno
  • 1923
  • Categoria
  • Radio (o sintonizzatore del dopoguerra WW2)
  • Radiomuseum.org ID
  • 183108

 Specifiche tecniche

  • Numero di tubi
  • 4
  • Principio generale
  • A circuiti accordati (amplif. diretta) senza reazione
  • N. di circuiti accordati
  • 2 Circuiti Mod. Amp. (AM)
  • Gamme d'onda
  • Solo onde medie (OM).
  • Tensioni di funzionamento
  • Batterie (di accumulatori e/o a secco)
  • Altoparlante
  • - Questo apparecchio richiede altoparlante/i esterno/i.
  • Materiali
  • Mobile in legno, valvole visibili.
  • Radiomuseum.org
  • Modello: 4445A Model 9A [variometer tuned] - Atwater Kent Mfg. Co.;
  • Forma
  • Diverse forme (descritte nelle note).
  • Dimensioni (LxAxP)
  • 620 x 220 x 220 mm / 24.4 x 8.7 x 8.7 inch
  • Annotazioni
  • Breadboard. Two dials (primary tuning control knobs).
    This was the last version of the variometer tuned Model 9. Battery binding posts were removed and power was carried to the receiver through a cable. The early version 9 used a green T/A unit and battery binding post connections while the later version used the cable and a brown wrinkle paint finish T/A can.
    Breadboard consisting of two type 11 tuners, RF-amp, TA 3812 Det./Amp; even regeneration was possible (though not designed for) through plate coupling (with a very good front tube);

    Antenna connections for long and short antenna on top of the board. Ground connection on the first variometer.

  • Peso netto
  • 5 kg / 11 lb 0.2 oz (11.013 lb)
  • Letteratura / Schemi (2)
  • The Atwater Kent Radios, The AWA Review, 1999 Vol. 12, by Ralph O. Williams, pages 53-57

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Il modello 4445A fa parte delle collezioni dei seguenti membri.

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