• Country
• Germany

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

• Year
• 1951

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 30987

• Number of Tubes
• 6

• Valves / Tubes
• ECH42 EF41 EBC41 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.

• Details
• Record Player (perh.Changer)

• 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 Musikus - Joba-Radio; St. Ingbert

• Shape
• Console with any shape - in general

• Notes
• Hat die gleiche Skala wie der Principal II, daher ist von vorn nur Principal als Name lesbar. Rückwand ist MUSIKUS bezeichnet.

• 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)