• Country
• Austria

• Manufacturer / Brand
• Protti & Spiller; Wien

• Year
• 1929/1930

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 10143

• Number of Tubes
• 3

• Valves / Tubes
• A425 A425 B405

• Main principle
• TRF with regeneration; 2 AF stage(s)

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast only (MW).

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

• Loudspeaker
• Magnetic loudspeaker (reed) of high quality (4 magnet poles).

• Material
• Wooden case

• from Radiomuseum.org
• Model: Tornado TB3/To - Protti & Spiller; Wien

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 380 x 440 x 240 mm / 15 x 17.3 x 9.4 inch

• Notes
• gr. Holzkoffer

• Net weight (2.2 lb = 1 kg)
• 4.7 kg / 10 lb 5.6 oz (10.352 lb)

• Price in first year of sale
• 275.00 ATS

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Mentioned in
• RADIO-WELT, Wien (Preis aus Radiowelt 1929 Heft 50)

• Literature/Schematics (1)
• RADIOBOTE, Österr. (Heft 14/2008, S.7, erwähnt in Firmengeschichte)

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

• Other Models

• Here you find 8 models, 3 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Protti & Spiller; Wien