• Country
• Netherlands

• Manufacturer / Brand
• Hees & Co-s Muziekinstrumenten Handel, N.V., Delft

• Year
• 1929 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 355277

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

• Number of Tubes
• 4

• Valves / Tubes
• REN1004 REN1004 B405 RGN354

• Main principle
• TRF with regeneration

• Tuned circuits
• 1 AM circuit(s)

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

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

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Metal case

• from Radiomuseum.org
• Model: Syrena Unknown 2 - Hees & Co-s Muziekinstrumenten

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 220 x 160 x 145 mm / 8.7 x 6.3 x 5.7 inch

• Notes

• Syrena is a 4-tube AC operated MW/LW band TRF receiver with reaction.

  Manufactured by Emud, Ernst Mästling; Ulm for Hees & Co-s Muziekinstrumenten Handel N.V., Delft.

  See also Emud Record 3 and Record (2)

• Net weight (2.2 lb = 1 kg)
• 2.690 kg / 5 lb 14.8 oz (5.925 lb)

• Author
• Model page created by Vicente Moncholi-Cebrian. See "Data change" for further contributors.

• Other Models

• Here you find 3 models, 3 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hees & Co-s Muziekinstrumenten Handel, N.V., Delft