P4

Lissauer, Dr. Walter, Prod.Werkst.; Altona-Bahrenfeld und Hamburg

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  • Year
  • 1924/1925
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 15843
    • alternative name: Präzisionswerkstätten
    • Brand: Radio Kosmos

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

 Technical Specifications

  • Number of Tubes
  • 1
  • Valves / Tubes
  • RE79
  • Main principle
  • TRF with diode detector; 1 Special; 1 AF stage(s); Reflex
  • Tuned circuits
  • 2 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case, TUBES VISIBLE.
  • from Radiomuseum.org
  • Model: P4 - Lissauer, Dr. Walter, Prod.
  • Shape
  • Tablemodel, slant panel.
  • Dimensions (WHD)
  • 250 x 200 x 200 mm / 9.8 x 7.9 x 7.9 inch
  • Notes
  • Detektor; Reflex; 2 Modelle (mit eingebauter Batterie).
  • Net weight (2.2 lb = 1 kg)
  • 3.5 kg / 7 lb 11.3 oz (7.709 lb)
  • Price in first year of sale
  • 115.00 RM +
  • External source of data
  • E. Erb 3-907007-36-0
  • Source of data
  • Radiokatalog Band 2, Ernst Erb
  • Circuit diagram reference
  • Info Dr. H. Börner without schematic
  • Picture reference
  • Das Modell ist im «Radiokatalog» (Erb) abgebildet.

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