• Year
  • 1954
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 25073
    • alternative name: Ideal-Radiotelephon- und App-fabr. || Ideal-Werke AG; Berlin (ab 1934)
    • Brand: Rotstern

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 7
  • Number of Transistors
  • Main principle
  • Superheterodyne (common); ZF/IF 450/10700 kHz
  • Tuned circuits
  • 6 AM circuit(s)     9 FM circuit(s)
  • Wave bands
  • Broadcast, Long Wave, Short Wave plus FM or UHF.
  • Power type and voltage
  • Alternating Current supply (AC) / 110-125; 220-240 Volt
  • Loudspeaker
  • 2 Loudspeakers
  • Power out
  • 4 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Madrid H2253 - Blaupunkt Ideal, Berlin,
  • Shape
  • Tablemodel with Push Buttons.
  • Dimensions (WHD)
  • 600 x 375 x 245 mm / 23.6 x 14.8 x 9.6 inch
  • Notes
  • Blaupunkt Madrid H2253 entspricht bis auf zusätzliche Ferritantenne technisch Modell Berlin H2053.
    Mischstufe bei AM: Röhre EF85.
    Oszillator (2. EC92) wird am Bremsgitter eingekoppelt.

    FM-Vorstufe: EC92 in neutralisierter Kathodenbasis-Schaltung.

  • Net weight (2.2 lb = 1 kg)
  • 11.5 kg / 25 lb 5.3 oz (25.33 lb)
  • Price in first year of sale
  • 339.00 DM
  • External source of data
  • Wiesmüller
  • Mentioned in
  • - - Manufacturers Literature (Prospekt, Weltstadtserie, Ende 1953)
  • Literature/Schematics (1)
  • -- Original-techn. papers.

 Collections | Museums | Literature

Collections

The model Madrid is part of the collections of the following members.

Literature

The model Madrid is documented in the following literature.

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