• Country
• Germany

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

• Year
• 1949

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 30985

• Number of Tubes
• 5

• Valves / Tubes
• ECH3 ECF1 CBL1 EM4 CY2

• 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) / 230 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 Prototyp - Joba-Radio; St. Ingbert

• Dimensions (WHD)
• 510 x 315 x 240 mm / 20.1 x 12.4 x 9.4 inch

• Notes
• Prototyp ohne Serien-Nr., war nicht im Verkauf, Rote Röhren

• Net weight (2.2 lb = 1 kg)
• 7.5 kg / 16 lb 8.3 oz (16.52 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)