Marconi Six (6) 296 Ch= 633W 2me série

Marconi (marque), Cie. Fse. du Gramophone; Paris

Dati
Forum
Immagini
Collezioni

  • Anno
  • 1934/1935
  • Categoria
  • Radio (o sintonizzatore del dopoguerra WW2)
  • Radiomuseum.org ID
  • 124408

Clicca sulla miniatura dello schema per richiederlo come documento gratuito.

 Specifiche tecniche

  • Numero di tubi
  • 6
  • Numero di transistor
  • Principio generale
  • Supereterodina con stadio RF; ZF/IF 128 kHz; 2 Stadi BF
  • Gamme d'onda
  • Onde medie (OM) e onde lunghe (OL).
  • Tensioni di funzionamento
  • Alimentazione a corrente alternata (CA) / 90; 110; 130; 150; 220; 250 Volt
  • Altoparlante
  • AP elettrodinamico (bobina mobile e bobina di eccitazione/di campo) / Ø 21 cm = 8.3 inch
  • Materiali
  • Mobile in legno
  • Radiomuseum.org
  • Modello: Marconi Six 296 Ch= 633W [2me série] - Marconi marque, Cie. Fse. du
  • Forma
  • Soprammobile verticale (sviluppato in altezza; no cattedrale, sin decorazioni).
  • Dimensioni (LxAxP)
  • 410 x 480 x 265 mm / 16.1 x 18.9 x 10.4 inch
  • Annotazioni

  • 2 gammes d'ondes : PO de 200 à 570 m, et GO de 900 à 2000 m. Détection par élément Westector (oxyde du cuivre).

    Ébénisterie en noyer et macassar, rétrécissant vers le haut.

    Châssis similaire au Pathé 64 (schéma). Voir aussi modèle Marconi Six (1re série, type 295).

    À noter : différentes types de châssis sont connus (appellés "modèle" sur la plaque du type), ex. 633W, 633W1, 633W15) - avec des différences inconnues. Reste à determiner.

  • Peso netto
  • 17 kg / 37 lb 7.1 oz (37.445 lb)
  • Prezzo nel primo anno
  • 1,750.00 FRF
  • Bibliografia
  • -- Original prospect or advert (Cherbourg-Éclair, 28.02.1935)
  • Letteratura / Schemi (1)
  • -- Original prospect or advert (L'Est Républicain, 28.04.1934)
  • Letteratura / Schemi (2)
  • La Nature, 1934 2ème, p.281
  • Autore
  • Modello inviato da Michael John. Utilizzare "Proponi modifica" per inviare ulteriori dati.

 Collezioni | Musei | Letteratura

Collezioni

Il modello Marconi Six (6) fa parte delle collezioni dei seguenti membri.

 Forum

Discussioni nel forum su questo modello: Marconi marque, Cie.: Marconi Six 296 Ch= 633W

Argomenti: 1 | Articoli: 9

Hello everyone,

I am currently working on the restoration of a G.E. Marconi model 633W15 Type 296, and I found some differences with the schematics that is in the model information in RadioMuseum.


As you can see in the diagram, the values ​​of R8 and R9 are not printed, and I could not find any reference on the Internet to know the original values. But what can be known in the diagram are the values ​​of V-voltages across radio, so by doing tests I have come to the conclusion that the appropriate values ​​for both R8 and R9 are: 68K Ohms. At least with those values ​​I have achieved the correct values ​​for V.


Another difference I have found is: in schematics CV4 appears inside IF1 and CV6 inside IF2, but when looking inside IF1 and IF2 there is physically neither CV4 nor CV6, therefore the primary of the IF transformers can not be adjusted. I think that both CV4 and CV6 were not factory installed because I seems that I am the first one opening the IF cans.


Another difference found in the schematics is that the denomination of the adjustable capacitor that is located in parallel with the D contacts of the bands switch is not printed: this adjustable capacitor must be labeled C5. This C5 is only active in LW-GO-OL.


Other difference found is that in the schematics a connection is missing: the upper contact of D switch must be connected to the junction point between L7 and L8. It has been physically verified on the radio that this connection exists but it is not marked in schematics.

I hope this information is useful.

Regards,

Vicente Moncholi - Seville - Spain

 

 

Vicente Moncholi-Cebrian, 15.Apr.18

Weitere Posts (9) zu diesem Thema.