• Paese
• USA (Stati Uniti d'America)

• Produttore / Marca
• Philco, Philadelphia Stg. Batt. Co.; USA

• Anno
• 1934

• Categoria
• Radio (o sintonizzatore del dopoguerra WW2)

• Radiomuseum.org ID
• 133121

Clicca sulla miniatura dello schema per richiederlo come documento gratuito.

• Numero di tubi
• 5

• Valvole
• 15 32 32 30 19

• Principio generale
• Supereterodina (in generale); ZF/IF 460 kHz

• Gamme d'onda
• Onde medie (OM) e tropicali/polizia (150-200m).

• Tensioni di funzionamento
• Batterie a secco / 135, 67.5, 2, -3, & -7 Volt

• Altoparlante
• AP magnetodinamico (magnete permanente e bobina mobile)

• Materiali
• Mobile in legno

• Radiomuseum.org
• Modello: 38B [Version 2] - Philco, Philadelphia Stg. Batt

• Forma
• Soprammobile a cattedrale o cupola (upright, round top or pinted arch, not rounded edges only).

• Dimensioni (LxAxP)
• 315 x 420 x 215 mm / 12.4 x 16.5 x 8.5 inch

• Annotazioni
• The model 38 series are battery operated 2-band sets with a variety of cabinet styles over several years.
  
  There were five versions of the cathedral 38B: Version 1 (1933) has the classic spade-shaped speaker opening used on many Philco cathedral cabinets. Version 2 (1934) has an oval opening with three vertical bars and downward curving additional bars at the bottom. Version 3 (1934-35) has an oval opening with stepped features at the bottom. Version 4 (1935) is similar to version 3, but has a larger escutcheon opening and new dial design. Version 5 (1936) has a cabinet with a continuous arch shape starting from the base and multiple vertical bars in the speaker opening.
  
  The model 38L lowboy has two versions: an early version (1933-34) with four narrow vertical bars at the edges of the speaker opening, along with other embellishment, and a late version (1934-35) with a single vertical bar through the center of the speaker opening, along with other embellishment.
  
  There was also a highboy (1933) and a floor-type console (1935-36).
  
  The chassis had an early version (used for 1933 and early 1934) with a type 15 mixer tube and a later version with type 1A6 mixer (used from mid 1934 onward). Chassis marked as model 38 have no ballast tube and are designed for use with a 2 volt storage battery for filaments. Those marked 38A have a ballast tube (type 6 early; type 1A1 late) and are designed for a dry battery (presumably 3 volts?) for the filament supply.
  
  Two Philco schematics are available: code 121 with type 15 mixer (also found in Rider vol 4) and code 123 with 1A6 mixer.

• Peso netto
• 5.7 kg / 12 lb 8.9 oz (12.555 lb)

• Prezzo nel primo anno
• 45.00 $

• Fonte dei dati
• Philco Radio 1928-1942

• Riferimenti schemi
• Rider's Perpetual, Volume 4 = ca. 1934 and before

• Bibliografia
• Machine Age to Jet Age II (page 212.)

• Letteratura / Schemi (1)
• Philco 1928-36 Wiring Diagrams, Parts Lists, and Essential Service Data

• Autore
• Modello inviato da Konrad Birkner † 12.08.2014. Utilizzare "Proponi modifica" per inviare ulteriori dati.

• Altri modelli

• In questo link sono elencati 4041 modelli, di cui 2217 con immagini e 3690 con schemi.
  Elenco delle radio e altri apparecchi della Philco, Philadelphia Stg. Batt. Co.; USA