• Country
• Germany

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

• Year
• 1939/1940

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 611

• • 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
• KK2 KF3 KB2 KF4 KC3 KDD1

• Main principle
• Superheterodyne (common)

• Tuned circuits
• 6 AM circuit(s)

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

• Power type and voltage
• Storage and/or dry batteries / 120+2 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Bakelite case

• from Radiomuseum.org
• Model: 6B69 - Blaupunkt Ideal, Berlin,

• Dimensions (WHD)
• 557 x 371 x 262 mm / 21.9 x 14.6 x 10.3 inch

• Notes
• Gegentakt

• Net weight (2.2 lb = 1 kg)
• 13.6 kg / 29 lb 15.3 oz (29.956 lb)

• Price in first year of sale
• 223.00 RM

• Source of data
• Handbuch WDRG 1939 / Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• Lange+Schenk+FS-Röhrenbestückung

• Picture reference
• Das Modell ist im «Radiokatalog» (Erb) abgebildet.

• Other Models

• Here you find 3589 models, 3277 with images and 2329 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Blaupunkt (Ideal), Berlin, später Hildesheim