• Country
• Denmark

• Manufacturer / Brand
• Bang & Olufsen (B&O); Struer

• Year
• 1955 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 74967

• • Brand: B&O

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

• Number of Tubes
• 6

• Valves / Tubes
• UCC85 UCH81 UF89 UF89 UM80 UL84

• Number of Transistors

• Semiconductors
• RL246 RL246 OA72 OA72 E220C130

• Main principle
• Superheterodyne (common); ZF/IF 444/10700 kHz

• Tuned circuits
• 6 AM circuit(s)     9 FM circuit(s)

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

• Power type and voltage
• AC/DC-set / 220 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Pioner 511 K - Bang & Olufsen B&O; Struer

• Shape
• Tablemodel, low profile (big size).

• Notes

• Built-in ferrite rod antenna. Germanium diodes for AM/FM demodulation.

• Net weight (2.2 lb = 1 kg)
• 11 kg / 24 lb 3.7 oz (24.229 lb)

• Literature/Schematics (1)
• -- Schematic

• Author
• Model page created by Hermann Jung. See "Data change" for further contributors.

• Other Models

• Here you find 477 models, 426 with images and 264 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Bang & Olufsen (B&O); Struer