• Country
• Germany

• Manufacturer / Brand
• RTG, System Junker; Berlin

• Year
• 1923/1924

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 16855

• Number of Tubes
• 2

• Valves / Tubes

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown); 1 Special; 1 AF stage(s); Reflex

• Tuned circuits
• 2 AM circuit(s)

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

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: Zweirohr-Reflex-Empfänger ER1 - RTG, System Junker; Berlin

• Dimensions (WHD)
• 300 x 155 x 275 mm / 11.8 x 6.1 x 10.8 inch

• Notes
• Reflex;Voltmeter f. Heizg.;Flachpult

• Net weight (2.2 lb = 1 kg)
• 3.5 kg / 7 lb 11.3 oz (7.709 lb)

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Circuit diagram reference
• Info Dr. H. Börner without schematic

• Mentioned in
• Der Radio-Händler / Der Rundfunk-Händler (ab Jan. 1939) (25)

• Literature/Schematics (1)
• Abele, Radio-Hersteller

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

• Other Models

• Here you find 7 models, 7 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from RTG, System Junker; Berlin