• Country
• Poland

• Manufacturer / Brand
• Czerwiński, Radio; (where?)

• Year
• 1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 298152

• Number of Tubes
• 4

• Valves / Tubes

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Direct Current supply (DC)

• Loudspeaker
• Magnetic loudspeaker (reed) generic.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Opera S - Czerwiński, Radio; where?

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

• Notes

• Like Tenor, only difference is loudspeaker

• Price in first year of sale
• 260.00 zł

• Mentioned in
• -- Original prospect or advert

• Author
• Model page created by Tomasz Szczesniak. See "Data change" for further contributors.

• Other Models

• Here you find 15 models, 15 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Czerwiński, Radio; (where?)