• Anno
  • 1934
  • Categoria
  • Radio (o sintonizzatore del dopoguerra WW2)
  • Radiomuseum.org ID
  • 51200

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 Specifiche tecniche

  • Numero di tubi
  • 4
  • Principio generale
  • Supereterodina (in generale); ZF/IF 460 kHz; Supereterodina con reazione non regolabile
  • N. di circuiti accordati
  • 3 Circuiti Mod. Amp. (AM)
  • Gamme d'onda
  • Solo onde medie (OM).
  • Tensioni di funzionamento
  • Alimentazione a corrente alternata (CA) / 115 Volt
  • Altoparlante
  • AP elettrodinamico (bobina mobile e bobina di eccitazione/di campo)
  • Materiali
  • Mobile in legno
  • Radiomuseum.org
  • Modello: 84B [Early] - Philco, Philadelphia Stg. Batt
  • Forma
  • Soprammobile a cattedrale o cupola (upright, round top or pinted arch, not rounded edges only).
  • Dimensioni (LxAxP)
  • 12 x 14.3 x 8 inch / 305 x 363 x 203 mm
  • Annotazioni
  • Model 84B was the third of a series (models 80B, 81B, and 84B) of low cost 4-tube cathedrals that used a regenerative combined IF/detector stage to maximize sensitivity with very few components.

    The early version (1934) had a round speaker opening with three vertical bars. The middle version (1935) had a lyre-shaped opening with three vertical bars. The late version (1936) had a continuous arch-shape extending upward from the base, and an oval speaker opening with five mostly vertical bars.

    Model 84B continued onward for one more year as model 37-84B, with two more cabinet styles, and a new tube lineup (but still using a similar circuit).
  • Prezzo nel primo anno
  • 20.00 $
  • Fonte esterna dei dati
  • Ernst Erb
  • Riferimenti schemi
  • Rider's Perpetual, Volume 4 = ca. 1934 and before
  • Letteratura / Schemi (1)
  • Philco Radio 1928-1942 (Philco 1928-36 Wiring Diagrams, Parts Lists, and Essential Service Data)

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