• Country
• Germany

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

• Year
• 1948–1950

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 713

• • 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
• 6

• Valves / Tubes
• ECH4 EF9 EF9 or AF3 EBL1 EM4 AZ1

• Main principle
• Superheterodyne (common); ZF/IF 473 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Alternating Current supply (AC) / 110-220 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Bakelite case

• from Radiomuseum.org
• Model: 6W648P - Blaupunkt Ideal, Berlin,

• Dimensions (WHD)
• 365 x 528 x 240 mm / 14.4 x 20.8 x 9.4 inch

• Net weight (2.2 lb = 1 kg)
• 11.5 kg / 25 lb 5.3 oz (25.33 lb)

• Price in first year of sale
• 490.00 DM

• Source of data
• Katalog Weide, 1949/50. / Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• Lange Schaltungen der Funkindustrie, Buch 2

• Mentioned in
• Das Rundfunk-Jahr 1948/49 (Funkschau (FS))

• Literature/Schematics (1)
• Lange, Schaltungen der Funkindustrie

• Other Models

• Here you find 3525 models, 3214 with images and 2320 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Blaupunkt (Ideal), Berlin, später Hildesheim