• Paese
• USA (Stati Uniti d'America)

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

• Anno
• 1937–1939

• Categoria
• Radio (o sintonizzatore del dopoguerra WW2)

• Radiomuseum.org ID
• 56313

• • Brand: Silvertone

Clicca sulla miniatura dello schema per richiederlo come documento gratuito.

• Numero di tubi
• 5

• Valvole
• 6D6 6D6 6C6 43 1-V

• Principio generale
• A circuiti accordati (amplif. diretta) senza reazione; 2 Stadi BF

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

• Gamme d'onda
• Solo onde medie (OM).

• Tensioni di funzionamento
• Alimentazione a corrente alternata (CA) / 40 watts, 50 to 60 cycles, 105 - 125 Volt

• Altoparlante
• AP elettrodinamico (bobina mobile e bobina di eccitazione/di campo) / Ø 5 inch = 12.7 cm

• Potenza d'uscita
• 0.98 W (qualità ignota)

• Materiali
• Plastica (non bachelite o catalina)

• Radiomuseum.org
• Modello: Silvertone 4500 Streamliner Order= 57F 4500, Ch= 101.393 - Sears, Roebuck & Co.; Chicago

• Forma
• Soprammobile compatto/con bordi arrotondati/midget senza pulsantiera/tastiera.<= 35 cm (Sometimes with handle but for mains only).

• Dimensioni (LxAxP)
• 9.75 x 7.25 x 5.75 inch / 248 x 184 x 146 mm

• Annotazioni

• The Silvertone model Streamliner with chassis 101.393 from Colonial was available in black colored bakelite with Gold colored grille as model 4500, in Ivory as model 4505 and in Mottled Walnut as model 4518. Rider's 8-15, a schematic from May 1, 1936 is for the models 4414, 4415, 4500, 4505 and 4506. Autotransformer! Speaker field is 1750 ohms. Direct tuning, 2-gang tuning condenser. One untuned RF stage. Broadcast from 545 to 1720 kHz. Undistorted output 0.98 watts, max. 1.64 watts. Price of model 4500 dropped from 9.89 to 7.95 in 1939. There are also models with suffix A.
  This model family was designed by John R. Morgan in 1936 which won a price in October 1936 for "outstanding beauty" in the US "Modern Plastics Competition". The design patent was Nr. 100,501 from July 21, 1936, filed May 25, 1936. The model first appeared as models 4414 in Ebony and 4415 in Ivory, already in "Plaskon" with the name "Election". But in the Sears catalog it is named as Bakelite! See also some summaries about Silvertone here.

• Prezzo nel primo anno
• 9.89 $

• 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 8 = 1937 and before

• Bibliografia
• Collector's Guide to Antique Radios 4. Edition (Machine Age to J.Vol.3 Stein 99)

• Letteratura / Schemi (1)
• Riders 8-15

• Letteratura / Schemi (2)
• The Sears Silvertone Catalogs 1930-1942 (page 122, 138, 152, 164)

• Letteratura / Schemi (3)
• Sears, Roebuck Catalogs (Silvertone) (# 175, 1937/38, page 655. #176, 1938, page 464. #177, 1938/39 page 708. #178, 1939 page 678.)

• Altri modelli

• In questo link sono elencati 5479 modelli, di cui 3211 con immagini e 4185 con schemi.
  Elenco delle radio e altri apparecchi della Sears, Roebuck & Co.; Chicago (IL)