• Country
• Czechoslovakia

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

• Year
• 1930–1932

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 76550

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

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

• Number of Tubes
• 4

• Valves / Tubes
• REN904 REN904 RE134 RGN354

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown); 2 AF stage(s)

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Alternating Current supply (AC) / 110-220 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Bakelite case

• from Radiomuseum.org
• Model: 33W - Radiotechna, spol. s r. o.,

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 380 x 250 x 170 mm / 15 x 9.8 x 6.7 inch

• Notes

• Hungarian price in 1931: 335 Pengő.

• Circuit diagram reference
• Lange-Nowisch

• Mentioned in
• Kammer és Társa, Árjegyzék 1931.

• Author
• Model page created by Eduard Pavlik. See "Data change" for further contributors.

• 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