• Country
• Germany

• Manufacturer / Brand
• Siemens (& Halske, -Schuckert Werke SSW, Electrogeräte); Berlin, München

• Year
• 1928–1930

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 5600

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

• Number of Tubes
• 3

• Valves / Tubes
• RE064 RE054 RE134

• 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 / 4 & 120 Volt

• Loudspeaker
• Magnetic loudspeaker (reed) generic.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Protos Rfe21 - Siemens & Halske, -Schuckert

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

• Dimensions (WHD)
• 500 x 350 x 200 mm / 19.7 x 13.8 x 7.9 inch

• Notes
• Protos-LS (oben rundl.) mit 3-Rö[510,514,560]

• Price in first year of sale
• 150.00 RM +

• Source of data
• Katalog Radio-Zentrale Prohaska 1928 / Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• Lange + FS-Bestückungstabellen

• Mentioned in
• Arlt's grosser Radiokatalog 1930

• Literature/Schematics (1)
• Lange / Nowisch, "Empfängerschaltungen der Radioindustrie" (Band VIII, 4. Aufl., S.193)

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

• Other Models

• Here you find 2522 models, 2119 with images and 1334 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Siemens (& Halske, -Schuckert Werke SSW, Electrogeräte); Berlin, München