3W4

• Country
• Germany

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

• Year
• 1934/1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 523

• • alternative name: Ideal-Radiotelephon- und App-fabr. || Ideal-Werke AG; Berlin (ab 1934)
  • Brand: Rotstern

• Picture
• Schematics

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Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 4

• Valves / Tubes
• ACH1 RENS1284 RES964 RGN1064

• Main principle
• Superheterodyne (common); ZF/IF 491 kHz; Reaction

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Alternating Current supply (AC) / 110-240 Volt

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

• Power out
• 3 W (unknown quality)

• Material
• Bakelite case

• from Radiomuseum.org
• Model: 3W4 - Blaupunkt Ideal, Berlin,

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 455 x 380 x 295 mm / 17.9 x 15 x 11.6 inch

• Notes
• Pultskala

• Price in first year of sale
• 248.00 RM

• Source of data
• Radio-Katalog Fricke, Radio Groß-Vertrieb, 1934/35 / Radiokatalog Band 1, Ernst Erb

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

• Mentioned in
• Radio-Katalog, Mix & Genest Hansawerke, 1935

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

• Other Models

• Here you find 3577 models, 3263 with images and 2328 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Blaupunkt (Ideal), Berlin, später Hildesheim