• Country
• Switzerland

• Manufacturer / Brand
• Kudelski SA; Cheseaux-sur-Lausanne

• Year
• 1982 ?

• Category
• Commercial Receiver (may include amateur bands)

• Radiomuseum.org ID
• 84161

• • Brand: Nagra

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

• Number of Transistors
• 1

• Semiconductors

• Main principle
• Superhet with RF-stage; something special ? Please give information (notes)

• Wave bands
• Wave Bands given in the notes.

• Details
• Converter

• Power type and voltage
• Powered by external power supply or a main unit. / 10,7 - 35 Volt

• Loudspeaker
• -Loudspeaker incorporated, but system not known.

• Material
• Metal case

• from Radiomuseum.org
• Model: F4-VLF - Kudelski SA; Cheseaux-sur-

• Dimensions (WHD)
• 360 x 75 x 147 mm / 14.2 x 3 x 5.8 inch

• Notes
• VLF-Synthesizer-Receiver. Längstwellenempfänger 100...200 kHz mit Digitalausgang für NAGRAFAX FAXTHF Wetterkartenschreiber; Feritantenne. Stationär und Mobil einsetzbar. Verwendung bei Wetterdiensten Seefahrt und Militär.

• Net weight (2.2 lb = 1 kg)
• 2 kg / 4 lb 6.5 oz (4.405 lb)

• Source of data
• -- Collector info (Sammler) / Radiokatalog Band 2, Ernst Erb

• Mentioned in
• U. Frankhäuser und DEBEG Seefunk

• Other Models

• Here you find 49 models, 46 with images and 21 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Kudelski SA; Cheseaux-sur-Lausanne