• Country
• Germany

• Manufacturer / Brand
• Lorenz; Berlin, Zuffenhausen u.a.

• Year
• 1931/1932

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 2972

• • Brand: SEL

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

• Number of Tubes
• 3

• Valves / Tubes
• RENS1204 RES174d RGN354

• Main principle
• TRF with regeneration; 1 AF stage(s)

• Tuned circuits
• 1 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110, 125, 150, 220 Volt

• Loudspeaker
• Magnetic loudspeaker (reed) of high quality (4 magnet poles). / Ø 27 cm = 10.6 inch

• Material
• Bakelite case

• from Radiomuseum.org
• Model: 231LW - Lorenz; Berlin, Zuffenhausen u

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 400 x 420 x 220 mm / 15.7 x 16.5 x 8.7 inch

• Notes
• Sch=31LW

• Price in first year of sale
• 168.00 RM !

• Source of data
• Katalog Radio-Zentrale Prohaska 1931/32 / Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• Lange + FS-Bestückungstabellen

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

• Other Models

• Here you find 730 models, 584 with images and 353 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Lorenz; Berlin, Zuffenhausen u.a.