• Country
• Germany

• Manufacturer / Brand
• Graetz Radio, Berlin Treptow SO36, Vorkrieg

• Year
• 1935–1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 1674

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

• Number of Tubes
• 6

• Valves / Tubes
• AH1 AF3 AB2 AC2 AL1 AZ1

• Main principle
• TRF with diode detector; 2 Special; 2 AF stage(s); Reaction

• Tuned circuits
• 2 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110; 125; 150; 220; 240 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Graetzor Granat 39W - Graetz Radio, Berlin Treptow

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

• Dimensions (WHD)
• 485 x 290 x 255 mm / 19.1 x 11.4 x 10 inch

• Notes
• Feldstärke Anzeige; «wandernder Senderknopf»!

• Net weight (2.2 lb = 1 kg)
• 15.6 kg / 34 lb 5.8 oz (34.361 lb)

• Price in first year of sale
• 254.00 RM

• Source of data
• Katalog Radio-Zentrale Alex v. Prohaska 1935/1936 / Radiokatalog Band 2, Ernst Erb

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

• Mentioned in
• HandB.d.d.Rundfunk-Handels 1936/37

• Picture reference
• Das Gerät ist im Doppelband "Historische Radios" von Günther Abele abgebildet.

• Other Models

• Here you find 75 models, 68 with images and 60 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Graetz Radio, Berlin Treptow SO36, Vorkrieg