Principal (Prinzipal) I (1)

Joba-Radio; St. Ingbert (Saarland)

  • Year
  • 1949
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 26832

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

 Technical Specifications

  • Number of Tubes
  • 6
  • 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) / 120; 220 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 I - Joba-Radio; St. Ingbert
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 510 x 315 x 240 mm / 20.1 x 12.4 x 9.4 inch
  • Notes
  • Rote Röhren; Chassis aus Hartfaser. Anodenspannung aus Netz mit Spartrafo.

    Die Zeitschrift "Rundfunk und Elektrotechnik" Ausgabe 5/49 schrieb das Modell mit "z" (Prinzipal) - der Name auf Rückwand, Skala und Schaltplan ist aber mit "c" geschrieben (Principal).

  • Net weight (2.2 lb = 1 kg)
  • 8 kg / 17 lb 9.9 oz (17.621 lb)
  • Price in first year of sale
  • 19,900.00 FRF
  • Source of data
  • -- Original prospect or advert / Radiokatalog Band 2, Ernst Erb
  • Mentioned in
  • - - Manufacturers Literature
  • Author
  • Model page created by Franz-Josef Haffner. See "Data change" for further contributors.

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