• Country
• Germany

• Manufacturer / Brand
• Akkord-Radio + Akkord Elektronik (Radios)

• Year
• 1957/1958

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 348

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

• Number of Tubes
• 4

• Valves / Tubes
• DK92 DF96 DAF96 DL96

• Main principle
• Superheterodyne (common); ZF/IF 468 kHz

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Line / Batteries (any type) / 110; 125; 150; 220; 240 / 1,5 + 75 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: Jonny K57 - Akkord-Radio + Akkord

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

• Dimensions (WHD)
• 236 x 160 x 76 mm / 9.3 x 6.3 x 3 inch

• Notes

• Wave bands;
  Button 2 (middle) SW1 18 - 5.8MHz,
  Button 3 (right) SW2 5.9 - 2.3MHz,
  MW is obtained by releasing both the SW buttons. MW 1620 - 510kHz
  Left push button 1, depressed = battery operation
  Built in telescopic aerial.
  
   

• Net weight (2.2 lb = 1 kg)
• 2.4 kg / 5 lb 4.6 oz (5.286 lb)

• Price in first year of sale
• 172.00 DM

• Source of data
• HdB d.Rdf-& Ferns-GrH 1957/58 / Radiokatalog Band 1, Ernst Erb

• Other Models

• Here you find 202 models, 182 with images and 141 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Akkord-Radio + Akkord Elektronik (Radios)