• Année
  • 1924/1925
perfect model
  • Catégorie
  • Radio - ou tuner d'après la guerre 1939-45
  • Radiomuseum.org ID
  • 37977
    • Brand: Leroy

 Spécifications techniques

  • No. de tubes
  • 3
  • Principe général
  • Récepteur TRF - par réaction (régénératif); 2 Etage(s) BF
  • Circuits accordés
  • 1 Circuits MA (AM)
  • Gammes d'ondes
  • PO uniquement
  • Tension / type courant
  • Piles sèches / "C" 1 x 4.5 volts & "A" 3 x 1.5 & "B" 4 x 22.5 V Volt
  • Haut-parleur
  • - Ce modèle nécessite des HP externes
  • Matière
  • Boitier en bois, lampes visibles
  • De Radiomuseum.org
  • Modèle: Echophone V-3 - Radio Shop, The Echophone;
  • Forme
  • Modèle de table à panneau incliné
  • Dimensions (LHP)
  • 11 x 9 x 12.5 inch / 279 x 229 x 318 mm
  • Remarques
  • The similar model sold as "Silvertone Meteor V3" by Sears & Roebuck.. The manufacturer was "The Radio Shop". Besides Sears, Echophone, and Radio Shop, also Armac sold this model. The model needs only dry cells, which was quite an advantage in 1924. Two dials as primary tuning control knobs, "Wavelength" and "Regeneration" and in the center below "Filament" rheostat.

    Early UV-199 tubes had 3-volt filaments and later they were rated at 3.3-volt filaments. Using two 1.5 volt cells provides only 3 volts and this decreases as the battery wears out.  The radio has a filament rheostat that the operator turns up until the radio begins playing and doesn’t need to turn it up any further, so the tubes do not operate the full 4.5 volts.  With three 1.5 volt cells, they can partially wear out and still provide 3.3 volts to the radio, as adjusted with the filament rheostat.  This is very similar to using a 6-volt storage battery to run 01A tubes with 5-volt filaments, as most radios with 01A tube used.

     

  • Poids net
  • 6 kg / 13 lb 3.5 oz (13.216 lb)
  • Prix de mise sur le marché
  • 50.00 $
  • Source extérieure
  • Ernst Erb
  • Schémathèque (4)
  • January 1925 Radio Broadcast magazine advertisement page 562

 Collections | Musées | Littérature

Collections

Le modèle Echophone V-3 fait partie des collections des membres suivants.

 Forum

Contributions du forum pour ce modèle: Radio Shop, The: Echophone V-3

Discussions: 1 | Publications: 1

Maße: 290 / 220 / 390; Mittelwelle; 1-Kreiser mit RK; 3 Röhren: UV199 / UV199 / UV199; im Innern des Kästchens Fach für Trockenbatterien;

Konrad Birkner † 12.08.2014, 05.Mar.04

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