• Country
• Germany

• Manufacturer / Brand
• Blaupunkt (Ideal), Berlin, später Hildesheim

• Year
• 1954

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 25075

• • 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.

• Number of Tubes
• 7

• Valves / Tubes
• EC92 EC92 EF85 EF93 EM85 EABC80 EL84

• Number of Transistors

• Semiconductors
• B250C90

• Main principle
• Superheterodyne (common); ZF/IF 450/10,7 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: Lissabon H2553 - Blaupunkt Ideal, Berlin,

• Shape
• Tablemodel with Push Buttons.

• Dimensions (WHD)
• 595 x 387 x 270 mm / 23.4 x 15.2 x 10.6 inch

• Net weight (2.2 lb = 1 kg)
• 12 kg / 26 lb 6.9 oz (26.432 lb)

• External source of data
• Wiesmüller

• Source of data
• Lange, Schaltungen der Funkindustrie

• Literature/Schematics (1)
• -- Original-techn. papers.

• Other Models

• Here you find 3591 models, 3280 with images and 2332 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Blaupunkt (Ideal), Berlin, später Hildesheim