• Year
  • 1931/1932
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 5479

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • TRF with regeneration; 1 Special; 2 AF stage(s)
  • Tuned circuits
  • 2 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Details
  • Record Player (not changer)
  • Power type and voltage
  • Alternating Current supply (AC) / 110-220 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Protofon P141W604 - Siemens & Halske, -Schuckert
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 500 x 450 x 500 mm / 19.7 x 17.7 x 19.7 inch
  • Notes
  • f=Mod. 2c!
  • Net weight (2.2 lb = 1 kg)
  • 30 kg / 66 lb 1.3 oz (66.079 lb)
  • Price in first year of sale
  • 700.00 RM
  • Circuit diagram reference
  • Lange-Nowisch
  • Picture reference
  • Das Modell ist im «Radiokatalog» (Erb) abgebildet.

 Collections | Museums | Literature

Museums

The model Protofon can be seen in the following museums.

 Forum