• Country
• Czechoslovakia

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

• Year
• 1944/1945

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 23312

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

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

• Number of Tubes
• 3

• Valves / Tubes
• ECH11 ECL11 AZ11

• Main principle
• Superheterodyne (common); ZF/IF 490 kHz

• Tuned circuits
• 4 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110-239 Volt

• Loudspeaker
• -Loudspeaker incorporated, but system not known.

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

• Notes
• anderer Schaltplan als Onyx I (und III) mit nicht bedienbarer Rückk.

• External source of data
• Erb

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

• 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