• Country
• Poland

• Manufacturer / Brand
• Unitra DIORA - Radiowerk Dzierzoniow,

• Year
• 1958–1968

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 107104

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

• Number of Tubes
• 4

• Valves / Tubes
• UCH21 UCH21 UBL21 UY1N

• Main principle
• Superheterodyne (common)

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

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

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

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Promyk 20402 - Unitra DIORA - Radiowerk

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 380 x 290 x 190 mm / 15 x 11.4 x 7.5 inch

• 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,