• Year
  • 1950/1951
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 771
    • 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
  • Main principle
  • Superheterodyne (common); ZF/IF 473/10700 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)     8 FM circuit(s)
  • Wave bands
  • Broadcast, Long Wave, Short Wave plus FM or UHF.
  • Power type and voltage
  • AC/DC-set / 110; 125; 220; 240 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 21 cm = 8.3 inch
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: L425U - Blaupunkt Ideal, Berlin,
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 610 x 360 x 250 mm / 24 x 14.2 x 9.8 inch
  • Notes
  • L-Abstimmung bei UKW, C-Abstimmung bei AM.
  • Price in first year of sale
  • 425.00 DM
  • Circuit diagram reference
  • Lange Schaltungen der Funkindustrie, Buch 2

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