• Country
• Austria

• Manufacturer / Brand
• Eumig, Elektrizitäts und Metallwaren-Industrie-Gesellschaft mbH; Wien

• Year
• 1926–1928

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 8326

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

• Number of Tubes
• 4

• Valves / Tubes
• A415 A415 A415 B405

• Main principle
• TRF with regeneration; 1 Special; 2 AF stage(s)

• Tuned circuits
• 2 AM circuit(s)

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

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Hartley IV 2475 - Eumig, Elektrizitäts und

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 530 x 160 x 210 mm / 20.9 x 6.3 x 8.3 inch

• Notes
• Variok.; Mod. mit nur MW. Alternativ zur Röhre B405 kann eine B443 verwendet werden

• Net weight (2.2 lb = 1 kg)
• 5.1 kg / 11 lb 3.7 oz (11.233 lb)

• Price in first year of sale
• 320.00 ATS

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Circuit diagram reference
• Unterlagen E.Erb

• Mentioned in
• Der Radio-Empfangs-Apparat, Band 3 (189)

• Other Models

• Here you find 259 models, 229 with images and 176 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Eumig, Elektrizitäts und Metallwaren-Industrie-Gesellschaft mbH; Wien