• Country
• Czechoslovakia

• Manufacturer / Brand
• Elektra, Pražský obchod potřebami pro domácnost; Praha

• Year
• 1951 ?

• Category
• Kit (Parts plus instruction) or building instructions only

• Radiomuseum.org ID
• 119365

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); ZF/IF 470 kHz

• Wave bands
• Broadcast plus more than 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 120; 220 Volt

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

• Power out
• 1.5 W (unknown quality)

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Úderník IV - Elektra, Pražský obchod

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 285 x 205 x 150 mm / 11.2 x 8.1 x 5.9 inch

• Notes
• The model Úderník IV is actually a receiver kit for 3 SW bands: 14···21 m, 20···36 m, 39···90 m.

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

• External source of data
• Viktor Cingel, Bratislava

• Mentioned in
• -- Original-techn. papers.

• Author
• Model page created by Wolfgang Lill. See "Data change" for further contributors.

• Other Models

• Here you find 29 models, 25 with images and 16 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Elektra, Pražský obchod potřebami pro domácnost; Praha