• Country
• Italy

• Manufacturer / Brand
• OST (O.S.T.), Officina Specializzata Trasformatori; Milano

• Year
• 1941 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 300124

• Number of Tubes
• 5

• Valves / Tubes
• 6E8MG 6K7GT 6H8MG 6K6GT 6X5GT

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 110; 125; 140; 160; 220 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 20 cm = 7.9 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: Radio Imperiale Serie 500 Mod. 501 - OST O.S.T., Officina

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

• Dimensions (WHD)
• 530 x 300 x 230 mm / 20.9 x 11.8 x 9.1 inch

• Net weight (2.2 lb = 1 kg)
• 10 kg / 22 lb 0.4 oz (22.026 lb)

• Author
• Model page created by Giorgio Taddei. See "Data change" for further contributors.

• Other Models

• Here you find 7 models, 6 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from OST (O.S.T.), Officina Specializzata Trasformatori; Milano