• Country
• Germany

• Manufacturer / Brand
• Nora, Aron, Heliowatt; Berlin

• Year
• 1928/1929

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 8113

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

• Wave bands
• - without

• Power type and voltage
• Line (AC, UC or DC not known)

• Loudspeaker
• Magnetic loudspeaker (reed) generic.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Fortissimo L20, L20a - Nora, Aron, Heliowatt; Berlin

• Notes

• Gross-LS, rechteckig, Holzverkleidung, lt. Radio Diehr ca. 1 Quadratmeter, nach Prospekt
  Gesamthöhe 80 cm.
  Magnet mit Fremderregung (Netz), aber kein dyn.LS!

  Verschiedene Frontgestaltungen.

  Preise: L20 kostete 54 RM; L20a kostete 50 RM.

• Net weight (2.2 lb = 1 kg)
• 15 kg / 33 lb 0.6 oz (33.04 lb)

• Price in first year of sale
• 54.00 RM

• Source of data
• Radiokatalog Band 1, Ernst Erb

• Mentioned in
• Radio-Diehr, Berlin, 1928/1929 (p.87, Nr.3/114)

• Other Models

• Here you find 634 models, 557 with images and 342 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Nora, Aron, Heliowatt; Berlin