• Paese
• USA (Stati Uniti d'America)

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

• Anno
• 1934/1935

• Categoria
• Radio (o sintonizzatore del dopoguerra WW2)

• Radiomuseum.org ID
• 55988

• • Brand: Silvertone

Clicca sulla miniatura dello schema per richiederlo come documento gratuito.

• Numero di tubi
• 5

• Valvole
• 951 230 951 232 233

• Numero di transistor

• Semiconduttori
• 30_Ballast

• Principio generale
• Supereterodina (in generale); ZF/IF 480 kHz; 2 Stadi BF

• N. di circuiti accordati
• 6 Circuiti Mod. Amp. (AM)

• Gamme d'onda
• Onde medie (OM) e corte (OC).

• Tensioni di funzionamento
• Batterie (di accumulatori e/o a secco) / 2 to 3 & -3 & -4.5 & 3 x 45 Volt

• Altoparlante
• Altoparlante magnetico (a spillo)

• Materiali
• Mobile in legno

• Radiomuseum.org
• Modello: Silvertone 1850 World's Fair Table Model Order= 57FM 1850 - Sears, Roebuck & Co.; Chicago

• Forma
• Soprammobile verticale con decorazioni (Tombstone).

• Dimensioni (LxAxP)
• 18.3 x 18.8 x 13.5 inch / 465 x 478 x 343 mm

• Annotazioni

• The Sears Silvertone 1850 is a battery operated 5 tube BC and SW band receiver. Uses ballast tube 30.  Riders states a 480kHz IF but Sears Silvertone Service Manual 1928 thru 1936 states 175kHz IF.

  Band Frequency Ranges are as follows:
  BC Band.............545-1760kHz
  SW Band............6.0-15.0MHz

  Chassis and schematic used in this model also used in models 1850A, 1851, 1862, 1868, 1868A, 1870, 1921, 1931 and 7147, with some models combining the power switch with the tone control and thus having 4 knobs instead of 5.

  Catalog states: Airplane easy tuning dial.  Includes Three longer life Silvertone "B" Batteries and Improved 6-month Dry "A" Battery.

  Designed in the spirit of World's Fair architecture and constructed by master cabinet makers, with front of carefully matched walnut and Madrone burl veneers.  Remainder in Walnut finish. All batteries contained inside the cabinet.  Complete with tubes and batteries described above and aerial kit.

  Order number 57FM 1850 Cash Price $ 32.95.  See details and summaries about Sears catalogs etc. This model was manufactured for Sears by Colonial Radio Corp., Buffalo, NY (Sears Manufacturer Source Number Code 101).

   

• Prezzo nel primo anno
• 32.95 $

• Fonte esterna dei dati
• Ernst Erb

• Fonte dei dati
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Riferimenti schemi
• Rider's Perpetual, Volume 5 = ca. 1934 and before

• Bibliografia
• Collector's Guide to Antique Radios 4. Edition

• Letteratura / Schemi (1)
• Rider's Perpetual, Volume 5 = ca. 1934 and before (Riders Sears 5-41, 42)

• Letteratura / Schemi (2)
• The Sears Silvertone Catalogs 1930-1942 (page 82, 87)

• Letteratura / Schemi (3)
• Sears, Roebuck Catalogs (Silvertone) (# 169, Fall & Winter 1934/35, page 533. #170, Spring & Summer 1935 page 475.)

• Letteratura / Schemi (4)
• Silvertone Radios, Service Inf. 1928 thru 1936 (Pages 551 to 555)

• Altri modelli

• In questo link sono elencati 5602 modelli, di cui 3252 con immagini e 4311 con schemi.
  Elenco delle radio e altri apparecchi della Sears, Roebuck & Co.; Chicago (IL)