• Country
• Germany

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

• Year
• 1936/1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 558

• • 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
• 8

• Valves / Tubes
• AH1 AH1 AC2 AH1 AB2 AF7 AL4 AZ1

• Main principle
• Superhet and TRF, very rare principle; ZF/IF 468 or 473 kHz

• Tuned circuits
• 8 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and 2 x Short Wave.

• Details
• Visual Tuning Indicator pre Eye

• Power type and voltage
• Alternating Current supply (AC) / 110; 125; 220; 240 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 23.5 cm = 9.3 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: 5W86 - Blaupunkt Ideal, Berlin,

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

• Dimensions (WHD)
• 475 x 445 x 330 mm / 18.7 x 17.5 x 13 inch

• Notes

• Super mit HF-Vorstufe, umschaltbar auf Geradeaus, dann Zweikreiser. Glimmsäule als Feldstärke-Anzeige. Schaltbare Bandbreite.

• Net weight (2.2 lb = 1 kg)
• 22 kg / 48 lb 7.3 oz (48.458 lb)

• Price in first year of sale
• 395.00 RM

• Source of data
• HandB.d.d.Rundfunk-Handels 1936/37 / Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• Lange-Nowisch

• Mentioned in
• -- Original-techn. papers.

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

• Other Models

• Here you find 3577 models, 3264 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