• Country
• Germany

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

• Year
• 1937/1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 1682

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

• Number of Tubes
• 5

• Valves / Tubes
• CH1 CF3 CB2 CL4 CY1 U920

• Main principle
• TRF with diode detector; 2 Special; 1 AF stage(s); Reaction

• Tuned circuits
• 2 AM circuit(s)

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

• Power type and voltage
• AC/DC-set / 110-240 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Graetzor 44GW - Graetz Radio, Berlin Treptow

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

• Dimensions (WHD)
• 535 x 310 x 285 mm / 21.1 x 12.2 x 11.2 inch

• Notes
• variable Bandbreite.

• Net weight (2.2 lb = 1 kg)
• 12.4 kg / 27 lb 5 oz (27.313 lb)

• Price in first year of sale
• 222.00 RM

• Source of data
• Handbuch WDRG 1937 / Radiokatalog Band 2, Ernst Erb

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

• Picture reference
• Das Modell ist im «Radiokatalog» (Erb) 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