FM/AM 3 Band Receiver Newscaster ICF-7800
Sony Corporation; Tokyo
- Paese
- Giappone
- Produttore / Marca
- Sony Corporation; Tokyo
- Anno
- 1976–1981 ?
- Categoria
- Radio (o sintonizzatore del dopoguerra WW2)
- Radiomuseum.org ID
- 87395
Clicca sulla miniatura dello schema per richiederlo come documento gratuito.
- Numero di transistor
- A semiconduttori.
- Semiconduttori
- Principio generale
- Supereterodina (in generale); ZF/IF 468 kHz
- Gamme d'onda
- Onde medie (OM), corte (OC) e FM.
- Tensioni di funzionamento
- Batterie / presa di alimentazione supplementare / AA: 4 x 1.5 V / DC 6 Volt
- Altoparlante
- AP magnetodinamico (magnete permanente e bobina mobile) / Ø 7.7 cm = 3 inch
- Potenza d'uscita
- 1.5 W (qualità ignota)
- Materiali
- Plastica (non bachelite o catalina)
- Radiomuseum.org
- Modello: FM/AM 3 Band Receiver Newscaster ICF-7800 - Sony Corporation; Tokyo
- Forma
- Tascabile (portatile molto piccola), < 20 cm
- Dimensioni (LxAxP)
- 136 x 95 x 70 mm / 5.4 x 3.7 x 2.8 inch
- Annotazioni
-
This model was developed as a result of returning to the concept that "transistor radios should be both small and offer high performance". The unique design enabled the radio to be folded for carrying and then unfolded for easy operation. It was nicknamed "Newscaster".
The design of this and other models (see for example Inno-Hit RS-580, Irradio LCR-25, Randix LCR-41, Sony TR-1818) probably was inspired by Brionvega TS502.
Reiseradio bei dem Lautsprecher und Bedienelemente erst nach dem Aufklappen zum Vorschein kommen. UKW (87,5-108 MHz) mit schaltbarem AFC, KW 3900-12000 kHz, MW 530-1605 kHz; zwei Teleskopantennen für KW und UKW; Drehspuleninstrument zur Sendereinstellung, Batteriekapazitätsanzeige und für Restzeit; mechanisch einstellbarer Timer. Anschlußbuchsen für ext. 6-Volt-Netzteil, Kopfhörer, Tonband und MPX-out.
- Peso netto
- 0.8 kg / 1 lb 12.2 oz (1.762 lb)
- Prezzo nel primo anno
- 398.00 DM
- Bibliografia
- Alles über die Sony Weltempfänger, R. Lichte
- Autore
- Modello inviato da Zenonas Langaitis. Utilizzare "Proponi modifica" per inviare ulteriori dati.
- Altri modelli
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Elenco delle radio e altri apparecchi della Sony Corporation; Tokyo
Collezioni
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Discussioni nel forum su questo modello: Sony Corporation;: FM/AM 3 Band Receiver Newscaster ICF-7800
Argomenti: 2 | Articoli: 5
I have recently acquired a Sony ICF-7800 in a so-so condition. It is working on all bands, despite some non identified issues on SW and MW bands where the symptoms are whistling around the tuned stations and loss of sensitivity (to be looked for at a later time).
The main issue is the speaker that shows a total foam ring degradation, unable to handle any level of bass. Treble works fine, though.
I have disassembled the radio to remove the major part of the damaged foam ring from the speaker, most of it freely laying around the enclosure.
Do you know of suitable speaker foam ring parts for this speaker? I found a few references in the Internet, but I wonder where these really are adequate.
Back cover removed to expose the speaker details:
- SONY
- 1-502-598-11
- 1.4W 6.5 Ohm
- 0837
- JAPAN
- J020
Jose Mesquita, 22.Jul.21
Hallo
Mein ICF 7800 fing mit der Zeit an zu knacken, später schaltete er sich von selbst ein obwohl
OFF Schalter auf OFF und Timer Schalter ebenfalls auf OFF in Mittelstellung.
Ich sah mir den Schaltplan an meine Vermutung Q4 Switching Transistor 2SA772.
Radio zerlegt der Transistor befindet sich auf dem Timer Board,Spannungen gemessen C 5,7V
E 5,7V B 5,5V eigentlich müsste er sperren laut Schaltplan.
Transistor ausgelötet ersetzt durch BC 327 Radio wieder in Ordnung.
Alten Transistor mit Transistorprüfgerät überprüft elektrisch in Ordnung seltsam?
Gruss
G. Härtl
Gerhard Härtl, 25.Oct.14