Choral

• Country
• Czechoslovakia

• Manufacturer / Brand
• Radiotechna, spol. s r. o., Praha-Prelouc

• Year
• 1936/1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 23290

• • alternative name: Kresl & spol, CS
  • Brand: Telefunken Praha

• Picture
• Schematics

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

• Number of Tubes
• 6

• Valves / Tubes
• AH1 AC2 AF3 AB2 AL4 AZ1

• Main principle
• Superheterodyne (common); ZF/IF 484 kHz

• Tuned circuits
• 5 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110, 125, 150, 220, 240 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Choral - Radiotechna, spol. s r. o.,

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 450 x 510 x 240 mm / 17.7 x 20.1 x 9.4 inch

• Notes

• See also Telefunken 643WK.

• Net weight (2.2 lb = 1 kg)
• 14.9 kg / 32 lb 13.1 oz (32.819 lb)

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

• External source of data
• Erb

• Source of data
• Ceskoslovenske prijimace 1933-1945, Baudys 1947

• Literature/Schematics (1)
• -- Original-techn. papers.

• Other Models

• Here you find 69 models, 62 with images and 53 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radiotechna, spol. s r. o., Praha-Prelouc