• Country
• Germany

• Manufacturer / Brand
• Emud, Ernst Mästling; Ulm

• Year
• 1937–1939

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 1550

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

• Number of Tubes
• 4

• Valves / Tubes
• KC1_p8 KC1_p8 KL1_sidecontact

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

• Tuned circuits
• 1 AM circuit(s)

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

• Power type and voltage
• Storage and/or dry batteries / 120+2 Volt

• Loudspeaker
• Magnetic loudspeaker (reed) of high quality (free mooving - only possible past 1931).

• Material
• Wooden case

• from Radiomuseum.org
• Model: B4 - Emud, Ernst Mästling; Ulm

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

• Dimensions (WHD)
• 530 x 280 x 250 mm / 20.9 x 11 x 9.8 inch

• Notes
• Gegentakt

• Net weight (2.2 lb = 1 kg)
• 8 kg / 17 lb 9.9 oz (17.621 lb)

• Price in first year of sale
• 132.00 RM

• Source of data
• Handbuch WDRG 1937 / Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• Lange+Schenk+FS-Röhrenbestückung

• Other Models

• Here you find 422 models, 328 with images and 231 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Emud, Ernst Mästling; Ulm