• Country
• Poland

• Manufacturer / Brand
• Unitra DIORA - Radiowerk Dzierzoniow,

• Year
• 1957

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 107103

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

• Number of Tubes
• 5

• Valves / Tubes
• ECH21 ECH21 EBL21 AZ1 EM4

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Details
• Record Player (perh.Changer)

• Power type and voltage
• Alternating Current supply (AC) / 220 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Preludium 6272 - Unitra DIORA - Radiowerk

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 570 x 300 x 370 mm / 22.4 x 11.8 x 14.6 inch

• Net weight (2.2 lb = 1 kg)
• 14.5 kg / 31 lb 15 oz (31.938 lb)

• Price in first year of sale
• 2,050.00 zl

• Source of data
• -- Collector info (Sammler)

• Author
• Model page created by Franz Scharner. See "Data change" for further contributors.

• Other Models

• Here you find 271 models, 225 with images and 138 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unitra DIORA - Radiowerk Dzierzoniow,