Joker 834

• Country
• Germany

• Manufacturer / Brand
• Graetz, Altena (Westfalen)

• Year
• 1959/1960

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 1779

• Picture
• Schematics

Previous Next

Previous Next

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

• Number of Transistors
• 9

• Semiconductors
• OC171 OC171 OC170 OC170 OC170 OC71 OC71 OC74 OC74

• Main principle
• Superheterodyne (common); ZF/IF 460/6750 kHz

• Tuned circuits
• 7 AM circuit(s)     10 FM circuit(s)

• Wave bands
• Broadcast, Long Wave, Short Wave plus FM or UHF.

• Power type and voltage
• Dry Batteries / 6 × 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 cm = 3.9 inch

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Joker 834 - Graetz, Altena Westfalen

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 290 x 180 x 102 mm / 11.4 x 7.1 x 4 inch

• Notes

• Erstmals vorgestellt auf der Deutschen Rundfunk-, Fernseh- und Phonoausstellung in Frankfurt/Main am 14.8.1959.

  Teilweise abweichende Transistorbestückung in UKW-HF und ZF. AF114 und AF115 für UKW und AF116 für ZF.

• Net weight (2.2 lb = 1 kg)
• 2.8 kg / 6 lb 2.7 oz (6.167 lb)

• Price in first year of sale
• 278.00 DM

• Source of data
• HdB d.Rdf-& Ferns-GrH 1960/61 / Radiokatalog Band 1, Ernst Erb

• Mentioned in
• -- Original prospect or advert

• Literature/Schematics (1)
• -- Original-techn. papers.

• Literature/Schematics (2)
• Funk-Technik (FT) (18/1959 S. 660, 661 / Neuvorstellung, Schema)

• Other Models

• Here you find 775 models, 696 with images and 594 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Graetz, Altena (Westfalen)