• Country
• Italy

• Manufacturer / Brand
• Siemens Italia; Milano

• Year
• 1952/1953

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 97449

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

• Number of Tubes
• 6

• Valves / Tubes
• ECH4 6SK7 6SQ7 6V6 EM4 6X5

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC)

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: SM633 - Siemens Italia; Milano

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

• Net weight (2.2 lb = 1 kg)
• 12.5 kg / 27 lb 8.5 oz (27.533 lb)

• Source of data
• Guida Pratica Antique Radio III (2000)

• Mentioned in
• Elettronica - n.1-2 - gennaio-aprile 1953

• Author
• Model page created by Alessandro De Poi. See "Data change" for further contributors.

• Other Models

• Here you find 215 models, 159 with images and 164 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Siemens Italia; Milano