• Country
• Germany

• Manufacturer / Brand
• Emud, Ernst Mästling; Ulm

• Year
• 1936/1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 1546

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

• Number of Tubes
• 4

• Valves / Tubes
• AF3 AF7 AL4 RGN1064

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

• Tuned circuits
• 2 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110-240 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 23W - Emud, Ernst Mästling; Ulm

• Dimensions (WHD)
• 440 x 300 x 240 mm / 17.3 x 11.8 x 9.4 inch

• Notes
• Tonblende, aufsteckbarer Mittelwellensperrkreis.

• Net weight (2.2 lb = 1 kg)
• 11.5 kg / 25 lb 5.3 oz (25.33 lb)

• Price in first year of sale
• 220.00 RM

• Source of data
• HandB.d.d.Rundfunk-Handels 1936/37 / 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