• Paese
• USA (Stati Uniti d'America)

• Produttore / Marca
• Zenith Radio Corp.; Chicago, IL

• Anno
• 1962

• Categoria
• Radio (o sintonizzatore del dopoguerra WW2)

• Radiomuseum.org ID
• 267987

• • alternative name: Chicago Radio Lab

Clicca sulla miniatura dello schema per richiederlo come documento gratuito.

• Numero di transistor
• 7

• Semiconduttori
• 2N411 2N409 2N409 2N409 2N407 2N407 2N407 1N87G

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

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

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

• Tensioni di funzionamento
• Batterie a secco / 4 x 1,5 Volt

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

• Potenza d'uscita
• 0.1 W (0.18 W max.)

• Materiali
• Plastica (non bachelite o catalina)

• Radiomuseum.org
• Modello: Royal 275-B Ch= 7CT40Z7 - Zenith Radio Corp.; Chicago,

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

• Dimensioni (LxAxP)
• 146 x 95 x 44 mm / 5.7 x 3.7 x 1.7 inch

• Annotazioni

• The Zenith Royal 275-B is a battery operated 7 transistor portable BC band receiver.  The BC band frequency tuning range is 540-1600kHz.  Has push-pull output stage and earphone jack that disconnects the speaker for private listening.

  This model uses chassis 7CT40Z7.  Earlier Royal 275 models used chassis 7CT40Z1 followed by chassis 7CT40Z2.

  The Royal 275 radio was available with 4 different cabinet colors:

  Model	Cabinet Colors
  Royal 275-B	Dark blue with light blue back
  Royal 275-F	Dark green with light green back
  Royal 275-J	Brown with tan back
  Royal 275-Y	Black with beige back

  NOTE: The Zenith Supplementary Service Manual Model Royal 275 Radio Chassis 7CT4027, dated 9-62 lists the chassis as 7CT4027 in the title, which is not correct.  The chassis is correctly listed as 7CT40Z7 in the table (Which follows the Zenith Chassis numbering system), and this has been confirmed with chassis numbers listed on the label inside actual radio models.

• Peso netto
• 0.520 kg / 1 lb 2.3 oz (1.145 lb)

• Letteratura / Schemi (1)
• - - Manufacturers Literature (Zenith Supplementary Service Manual Model Royal 275 Radio Chassis 7CT4027 dated 9-62)

• Letteratura / Schemi (2)
• - - Manufacturers Literature (Zenith Service Manual Model "Royal 275" Transistor Portable Radio dated 5-26-59)

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

• Altri modelli

• In questo link sono elencati 4496 modelli, di cui 4101 con immagini e 3615 con schemi.
  Elenco delle radio e altri apparecchi della Zenith Radio Corp.; Chicago, IL