• Country
• Belgium

• Manufacturer / Brand
• National Radio Works; Bruxelles

• Year
• 1934 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 256481

• Number of Tubes
• 4

• Valves / Tubes

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

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

• Power type and voltage
• Direct Current supply (DC) / 220 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Tétradyne [continu] - National Radio Works;

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Notes

• Gamme de réception 195 à 2000 m.

• Price in first year of sale
• 1,150.00 BFR

• Mentioned in
• -- Original prospect or advert

• Other Models

• Here you find 24 models, 24 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from National Radio Works; Bruxelles