• Country
• Finland

• Manufacturer / Brand
• Lehtinen & Osterlund

• Year
• 1927 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 135558

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

• Number of Tubes
• 6

• Valves / Tubes

• Main principle
• TRF without regeneration; Neutrodyne

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

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

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: 6 tube Neutrodyne - Lehtinen & Osterlund

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

• Dimensions (WHD)
• 1050 x 295 x 325 mm / 41.3 x 11.6 x 12.8 inch

• Notes
• All 6 tubes European 4-pin, 4V triodes, type unknown

• Net weight (2.2 lb = 1 kg)
• 18 kg / 39 lb 10.4 oz (39.648 lb)

• Source of data
• - - Data from my own collection

• Author
• Model page created by Juhani Makivuoti † 21.09.13. See "Data change" for further contributors.

• Other Models

• Here you find 2 models, 2 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Lehtinen & Osterlund