• Country
• Germany

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

• Year
• 1930–1932

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 5534

• Number of Tubes
• 3

• Valves / Tubes
• RE064 RE054 RE114 or 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

• Loudspeaker
• Magnetic loudspeaker (reed) generic.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Protos L30B - Siemens & Halske, -Schuckert

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

• Notes

• Protos-LS (oben rundlich) mit 3-Rö-App. [569]

  Mehrpreis RE 134: 2,50 RM

• Price in first year of sale
• 94.00 RM

• Source of data
• Katalog Radio-Zentrale Prohaska 1930/31 (dick) / Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• FS-Bestückungstab. (wahrsch. m.Fehler)

• Mentioned in
• Katalog Radio-Zentrale Prohaska 1931/32

• Other Models

• Here you find 2523 models, 2120 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