• Year
  • 1951/1952
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 817
    • 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
  • 5
  • Number of Transistors
  • Main principle
  • Superhet with RF-stage; ZF/IF 473 kHz
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Line / Batteries (any type) / AC/DC 110-220 / 9 & 75 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: Lido K51A - Blaupunkt Ideal, Berlin,
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 275 x 230 x 110 mm / 10.8 x 9.1 x 4.3 inch
  • Notes
  • Achtung: Selen-Gleichrichter ist in beiden Schaltbildern verkehrt gepolt gezeichnet!
    Alternative Röhrenbestückung: 1T4, 1R5, 1T4, 1S5, 3S4.
    Eingebaute Rahmenantenne; Vorrichtung zur Anbringung eines Trageriemens.
  • Net weight (2.2 lb = 1 kg)
  • 2.3 kg / 5 lb 1.1 oz (5.066 lb)
  • Price in first year of sale
  • 243.00 DM
  • Circuit diagram reference
  • Lange Schaltungen der Funkindustrie, Buch 2
  • Literature/Schematics (1)
  • -- Original-techn. papers.
  • Picture reference
  • Das Modell ist im «Radiokatalog» (Erb) abgebildet.

 Collections | Museums | Literature

Collections

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

 Forum