• Paese
• USA (Stati Uniti d'America)

• Produttore / Marca
• Sears, Roebuck & Co.; Chicago (IL)

• Anno
• 1932/1933

• Categoria
• Radio (o sintonizzatore del dopoguerra WW2)

• Radiomuseum.org ID
• 277362

• • Brand: Silvertone

Clicca sulla miniatura dello schema per richiederlo come documento gratuito.

• Numero di tubi
• 7

• Valvole
• 56 58 or 57 or 24 58 58 57 or 24 47 80

• Principio generale
• Supereterodina (in generale); ZF/IF 175 kHz; 2 Stadi BF

• Gamme d'onda
• Onde medie (OM) e 2 gamme di onde corte (2 x OC).

• 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 1586 - Sears, Roebuck & Co.; Chicago

• Forma
• Console, con gambe d'appoggio basse (< 50%).

• Annotazioni

• The Sears Silvertone 1586 has a "Micro-Vision Triple Scale Dial". This is a moving scale AND a moving pointer that move in opposite directions! The loudspeaker has a hum bucking coil. Has a 3-gang tuning condenser but no RF stage - and reduced number of IF circuits depending on schematic version (referred to as a "self-tuned" IF output transformer). The model 1586 could be ordered for 25 cycle line power without any additional cost. The Silvertone console 1587 and the cathedral 1585 share the same chassis / schematic - see list below. This model is a domestic version and the mains transformer has no taps. But there is also a "Universal transformer" for 40 to 60 cycle available with taps: 115, 130, 155 and 230 volts. 

  This model was manufactured for Sears by Colonial Radio Corp., Buffalo, NY (Sears Manufacturer Source Number Code 101). In fact it is the schematic of Colonial model 62. But within the same model family there were quite a few changes made which are explained in the original Sears documentation included with the schematics. Even the tubes could be different (see plan "B"). The schematics are officially for models 1580, 1582, 1584, 1585, 1586, 1588, 1589, 7100, but model 1587 is also part of this model family and there are possibly others.

• Letteratura / Schemi (3)
• Silvertone Radios, Service Inf. 1928 thru 1936 (Pages 245 - 252)

• Autore
• Modello inviato da John Kusching. Utilizzare "Proponi modifica" per inviare ulteriori dati.

• Altri modelli

• In questo link sono elencati 5464 modelli, di cui 3199 con immagini e 4170 con schemi.
  Elenco delle radio e altri apparecchi della Sears, Roebuck & Co.; Chicago (IL)