34B (34, 34A) Early

Philco, Philadelphia Stg. Batt. Co.; USA

Dati
Forum
Immagini
Collezioni

  • Anno
  • 1934/1934
  • Categoria
  • Radio (o sintonizzatore del dopoguerra WW2)
  • Radiomuseum.org ID
  • 135777

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 Specifiche tecniche

  • Numero di tubi
  • 7
  • Principio generale
  • Supereterodina (in generale); ZF/IF 460 kHz; 3 Stadi BF
  • Gamme d'onda
  • Onde medie (OM) e più di 2 gamme di onde corte (> 2 x OC).
  • Tensioni di funzionamento
  • Batterie (di accumulatori e/o a secco) / 135 & 67.5 & 2 & -3 & -7.5 Volt
  • Altoparlante
  • AP magnetodinamico (magnete permanente e bobina mobile)
  • Materiali
  • Mobile in legno
  • Radiomuseum.org
  • Modello: 34B [Early] - Philco, Philadelphia Stg. Batt
  • Forma
  • Soprammobile a cattedrale o cupola (upright, round top or pinted arch, not rounded edges only).
  • Annotazioni
  • Philco's model 34 series used a 4-band (BC - 23 MHz) 7-tube chassis powered by batteries. The standard model 34 chassis used a 2 volt A supply from a storage battery, while the 34A chassis was designed for dry battery A supply and had an extra ballast tube in series with the A supply, presumably to lower the A supply from 3 to 2 volts. Both types of chassis used two separate -3 V C batteries, one with a connection common to the other batteries, and one independent.

    There were three versions of the model 34B table radio. The early version (1934) used the flat-front version of one of Philco's classic cathedral cabinet designs with spade-shaped speaker opening. The middle version (1934) used a different cathedral cabinet with a scalloped top. The late version (1935) was a shouldered tombstone with a lyre-shaped speaker opening with three vertical bars through the center.

    There were two versions of the 32L lowboy - an early version (1934)with four mostly-vertical bars through the speaker opening, and a late version (1934-35) with nested V- and W-bar patterns through the speaker opening.
  • Riferimenti schemi
  • Rider's Perpetual, Volume 5 = ca. 1934 and before
  • Letteratura / Schemi (1)
  • Philco 1928-36 Wiring Diagrams, Parts Lists, and Essential Service Data
  • Autore
  • Modello inviato da Thomas Albrecht. Utilizzare "Proponi modifica" per inviare ulteriori dati.

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