• Anno
  • 1955/1956
  • Categoria
  • Radio (o sintonizzatore del dopoguerra WW2)
  • Radiomuseum.org ID
  • 2078
    • alternative name: Grundig Portugal || Grundig USA / Lextronix

Clicca sulla miniatura dello schema per richiederlo come documento gratuito.

 Specifiche tecniche

  • Numero di tubi
  • 6
  • Principio generale
  • Supereterodina (in generale); ZF/IF 468/10700 kHz
  • N. di circuiti accordati
  • 6 Circuiti Mod. Amp. (AM)     8 Circuiti Mod. Freq. (FM)
  • Gamme d'onda
  • Onde medie (OM), lunghe (OL) e MF (FM).
  • Tensioni di funzionamento
  • Alimentazione a corrente alternata (CA) / 110; 125; 160; 220 Volt
  • Altoparlante
  • 2 altoparlanti
  • Potenza d'uscita
  • 3 W (qualità ignota)
  • Materiali
  • Bachelite
  • Radiomuseum.org
  • Modello: 1055W/3D - Grundig Radio-Vertrieb, RVF,
  • Forma
  • Soprammobile con pulsantiera/tastiera.
  • Dimensioni (LxAxP)
  • 525 x 335 x 220 mm / 20.7 x 13.2 x 8.7 inch
  • Annotazioni
  • Grundig 1055W/3D verwendet auch bei AM additive Mischung. Siehe auch die Exportversion Majestic 1055 USA mit abweichender Röhrenbestückung und multiplikativer AM-Mischung (ECH81).

    Laut Angabe auf der Rückwand besitzt das Modell 10 FM- und 7 AM-Kreise. Tatsächlich sind gemäss üblicher Zählweise (ohne Sperr- bzw. Saugkreise) laut Schema nur 8 FM- und 6 AM-Kreise vorhanden.

  • Peso netto
  • 6.6 kg / 14 lb 8.6 oz (14.537 lb)
  • Prezzo nel primo anno
  • 226.00 DM
  • Letteratura / Schemi (1)
  • -- Original-techn. papers.
  • Bibliografia immagini
  • Das Modell ist im «Radiokatalog» (Erb) abgebildet.

 Collezioni | Musei | Letteratura

 Forum

Discussioni nel forum su questo modello: Grundig Radio-: 1055W/3D

Argomenti: 1 | Articoli: 5

Forum Friends,

I have a minor question about the designation of the mixing process in the MW and LW bands of the Grundig 1055. The RF signal is applied to the control grid of EF89 pentode mixer, and the local oscillator voltage from the EC92 Local Oscillator triode drives the cathode of the EF89 pentode mixer.

This process was described as additive mixing in this thread.

This thread is in German, I used Google-Translate to read it.

My informal understanding of additive mixing means that the RF signal and local oscillator are linearly added together before being applied to the non-linear mixing device. This is the case in this radio in the FM band, with the self-oscillating EC92 triode converter.

It seems to me that this Radio uses multiplicative mixing in the MW and LW bands, but I am not sure about my understanding of the additive-vs.-multiplicative nomenclature.

Best regards,

-Joe

Joe Sousa, 15.Jun.09

Weitere Posts (5) zu diesem Thema.