• Country
• Germany

• Manufacturer / Brand
• Joba-Radio; St. Ingbert (Saarland)

• Year
• 1950

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 30986

• Number of Tubes
• 6

• Valves / Tubes
• ECH41 EAF41 EAF41 EL41 EM4 GZ40

• Main principle
• Superheterodyne (common); ZF/IF 475 kHz

• Tuned circuits
• 6 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110-245 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 21 cm = 8.3 inch

• Power out
• 4 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Principal II - Joba-Radio; St. Ingbert

• Dimensions (WHD)
• 535 x 350 x 250 mm / 21.1 x 13.8 x 9.8 inch

• Notes
• Rimlock-Röhren.

• Net weight (2.2 lb = 1 kg)
• 8.6 kg / 18 lb 15.1 oz (18.943 lb)

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

• Author
• Model page created by Jacob Roschy. See "Data change" for further contributors.

• Other Models

• Here you find 12 models, 11 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Joba-Radio; St. Ingbert (Saarland)