Silvertone 1670 Early (osc 58)

Sears, Roebuck & Co.; Chicago (IL)

  • Anno
  • 1933
  • Categoria
  • Radio (o sintonizzatore del dopoguerra WW2)
  • Radiomuseum.org ID
  • 55901
    • Brand: Silvertone

Clicca sulla miniatura dello schema per richiederlo come documento gratuito.

 Specifiche tecniche

  • Numero di tubi
  • 11
  • Principio generale
  • Supereterodina (in generale); ZF/IF 175 kHz
  • N. di circuiti accordati
  • 6 Circuiti Mod. Amp. (AM)
  • Gamme d'onda
  • Solo onde medie (OM).
  • Tensioni di funzionamento
  • Alimentazione a corrente alternata (CA) / 110-120 Volt
  • Altoparlante
  • AP elettrodinamico (bobina mobile e bobina di eccitazione/di campo) / Ø 10 inch = 25.4 cm
  • Materiali
  • Mobile in legno
  • Radiomuseum.org
  • Modello: Silvertone 1670 [Early ] - Sears, Roebuck & Co.; Chicago
  • Forma
  • Console, con gambe d'appoggio basse (< 50%).
  • Dimensioni (LxAxP)
  • 24 x 40.3 x 13.5 inch / 610 x 1024 x 343 mm
  • Annotazioni
  • This model Silvertone 1670 was probably first available with only one tuned IF with 3 tuned circuits as "Early", schematic "A" in Rider's page 6-17 and probably facing difficulties with the second IF only being an untuned IF transformer. On page 6-18 can be found a schematic "B" as "Late" with a second tuned IF transformer with two tuned circuits for more selectivity. Most probably there was no other change and clients did not know a change. First production used a 58 oscillator, the "Late" a 224A oscillator. See the common pages 6-16 and 6-19. 3-gang tuning condenser, hum bucking coil on loudspeaker (together with the speaker field coil). The model 1650 is technically identical but uses only one tube 280, thus having 10 tubes. Pre-War Consoles by Mark V. Stein brings a wrong picture on page 174, confusing with the Silvertone 1641.
  • Prezzo nel primo anno
  • 49.50 $
  • Fonte esterna dei dati
  • Ernst Erb
  • Riferimenti schemi
  • Rider's Perpetual, Volume 6 = 1935 and before

 Collezioni | Musei | Letteratura

 Forum