• Country
• Hungary

• Manufacturer / Brand
• Echo, Vörös Rezső okl. gépészmérnök Rádiólaboratóriuma; Budapest

• Year
• 1941/1942

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 123837

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

• Number of Tubes
• 4

• Valves / Tubes
• DK21 DF21 DAC21 DL21

• Main principle
• Superheterodyne (common); ZF/IF 473 kHz

• Tuned circuits
• 6 AM circuit(s)

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

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 19.5 cm = 7.7 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: Kisszuper 441T2 - Echo, Vörös Rezső okl. gépészm

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 430 x 300 x 210 mm / 16.9 x 11.8 x 8.3 inch

• Notes

• Tube filament: 4V!

  Models Echo 441T1 and 441T2 were described in Rádió Technika, May 1942, p. 113-116, but the schematics depicted in the article carry the designations 442T1 and 442T2 respectively.

• Author
• Model page created by Sándor Selyem-Tóth. See "Data change" for further contributors.

• Other Models

• Here you find 34 models, 28 with images and 32 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Echo, Vörös Rezső okl. gépészmérnök Rádiólaboratóriuma; Budapest