• Anno
  • 1971–1973
  • Categoria
  • Radio (o sintonizzatore del dopoguerra WW2)
  • Radiomuseum.org ID
  • 28363

Clicca sulla miniatura dello schema per richiederlo come documento gratuito.

 Specifiche tecniche

  • Numero di transistor
  • 28
  • Semiconduttori
  • Principio generale
  • Supereterodina (in generale); ZF/IF 460/10700 kHz
  • N. di circuiti accordati
  • 6 Circuiti Mod. Amp. (AM)     13 Circuiti Mod. Freq. (FM)
  • Gamme d'onda
  • Onde medie (OM), lunghe (OL), corte (OC) e MF (FM).
  • Tensioni di funzionamento
  • Alimentazione a corrente alternata (CA) / 110-127; 220-240 Volt
  • Altoparlante
  • - Questo apparecchio richiede altoparlante/i esterno/i.
  • Potenza d'uscita
  • 20 W (30 W max.)
  • Materiali
  • Mobile in legno
  • Radiomuseum.org
  • Modello: Operette HiFi 301 - Telefunken Deutschland TFK,
  • Forma
  • Apparecchio per ripiani a scaffale (come i componibili HiFi).
  • Dimensioni (LxAxP)
  • 550 x 140 x 220 mm / 21.7 x 5.5 x 8.7 inch
  • Annotazioni
  • ICs: 1.
    HiFi-Stereo-Steuergerät. NF-Verstärker mit 2 Endstufen je 10 W (Sinus).
  • Peso netto
  • 6.3 kg / 13 lb 14 oz (13.877 lb)
  • Prezzo nel primo anno
  • 398.00 DM
  • Fonte esterna dei dati
  • Erb
  • Letteratura / Schemi (1)
  • -- Schematic

 Collezioni | Musei | Letteratura

Collezioni

Il modello Operette HiFi fa parte delle collezioni dei seguenti membri.

 Forum

Discussioni nel forum su questo modello: Telefunken: Operette HiFi 301

Argomenti: 1 | Articoli: 1

 

Dear radiofriends

 

I needed to replace the cord to this radio using the complex diagram and without any instructions that Telefunken has elaborated (d_tfk_operette_hifi301_seil.pdf).

The best most practical process I got was this:

  1. In the first step is to get a cord with about 2,5 meters, there will be a bit of cord left, but it is better to spare than after the end of work is missing.

  2. The AM variable capacitor is opened, ie at the highest frequency (1600 KHz), and the drum that drives the FM coil and thus to secure the coil core at the highest frequency (104 MHz).

  3. Fix one of the ends of the cord with the recommended length on the drum (black) of the variable capacitor AM, in the hole of the knot, keeping the variable always in the same position, wrap the cord with three turn counterclockwise.

  4. After passing by the metal roller below, which in turn, the cord will pass through the tuning shaft, in the lower rail giving two turns of cord clockwise.

  5. Stretch the cord by following the arrows as shown in figure 1, until the cord enters the drum (white) of FM, wind the cord in the lower rail clockwise with three turns, and the fourth turn will be given in the upper rail of the same FM drum, and through a groove the drum has, passing the cord through the groove continuing to wind in the same direction only one turn of cord then passing the cord through the tuning shaft, in the upper rail giving two turns of cord counter clockwise.

  6. Then pass the cord through the plastic roller (with small springs inside), going around it, following the arrows with the cord passing through the small roller of black plastic.

  7.  Wind the cord through the bottom (clockwise) on the AM drum until it locks into the spring shown in figure 1.

So the cord assembly is finished, with this small contribution I hope to have helped those who in the future encounter the same problem as me.

P.S.

If a member has factory instructions or has found an easier process than mine, I suggested that they put it here because it would help many radiofriends.

Best Regards

Júlio Branco, from Portugal

Fig.1

Júlio Branco, 30.Aug.18

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