• Paese
• USA (Stati Uniti d'America)

• Produttore / Marca
• Raytheon Mfg. Co.; Cambridge, MA

• Anno
• 1956

• Categoria
• Radio (o sintonizzatore del dopoguerra WW2)

• Radiomuseum.org ID
• 71799

Clicca sulla miniatura dello schema per richiederlo come documento gratuito.

• Numero di transistor
• 4

• Semiconduttori
• 2N252 or. 2N112 or. CK760 2N308 or. 2N112 or. CK760 2N238 or. 2N132 2N185 or. 2N138 CK706A

• Principio generale
• Supereterodina (in generale); ZF/IF 455 kHz; 2 Stadi BF

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

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

• Tensioni di funzionamento
• Batterie (di accumulatori e/o a secco) / 9 Volt

• Altoparlante
• AP magnetodinamico (magnete permanente e bobina mobile) / Ø 2.75 inch = 7 cm

• Materiali
• Plastica (non bachelite o catalina)

• Radiomuseum.org
• Modello: T-100-5 Ch= 4RT1 - Raytheon Mfg. Co.; Cambridge,

• Forma
• Tascabile (portatile molto piccola), < 20 cm

• Dimensioni (LxAxP)
• 6.375 x 3.375 x 2 inch / 162 x 86 x 51 mm

• Annotazioni
• This first pocket transistor radio from Raytheon Mfg. Co., the radio model T-100, came in 5 different colors: T-100-1 = black/yellow, T-100-2 in ivory/yellow, T-100-3 in black/red, T-100-4 in ivory/red and T-100-5 in ivory/gray. Raytheon made it under the license of RCA and customized it also for Hallicrafters as model 4RT3, Airline as model BR-1102A and for Truetone as model D3715A in Turquoise. There are different schematic sources depending on the brand. Some have different values. Please check here for more information about this model family and about the differences.
  
  Right front round brass dial with below a thumb wheel on/off/volume knob or wheel in front. In the middle a checkered grill area. The right is a free area for brand, name etc. 1 Germanium diode. No reflex circuit used. Earphone receptacle. For the semiconductors see the equivalent list by clicking the one you need on the list of the four transistors.
  
  Interesting: For Hallicrafters the case was reversed and the thumb wheel on the front was turned into a thumb wheel on the top. Clever idea to hide its origin. See about schematics and differences between them in this explaining text.

• Fonte dei dati
• The Collector's Guide To Antique Radios 2. Edition

• Bibliografia
• Beitman Radio Diagrams, Vol. 16, 1956 (page 132.)

• Letteratura / Schemi (1)
• Photofact Folder, Howard W. SAMS (Date 7-58, set 405, folder 15 - is actually for Truetone model D3715A - but this is the same.)

• Autore
• Modello inviato da Ernst Erb. Utilizzare "Proponi modifica" per inviare ulteriori dati.

• Altri modelli

• In questo link sono elencati 324 modelli, di cui 152 con immagini e 240 con schemi.
  Elenco delle radio e altri apparecchi della Raytheon Mfg. Co.; Cambridge, MA