• Country
• Brazil

• Manufacturer / Brand
• Telespark - Feigenson - SA.

• Year
• 1964 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 368702

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

• Number of Transistors
• 7

• Semiconductors
• GFT43 GFT43 GFT43 GFT20 GFT21 GFT34 GFT34 GSD5/2 GSD5/2

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 3 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

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

• Power type and voltage
• Dry Batteries / 6 x 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Power out
• 0.2 W (unknown quality)

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Transcosmos FTR-74 - Telespark - Feigenson - SA.

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 260 x 170 x 80 mm / 10.2 x 6.7 x 3.1 inch

• Notes

• Coverage:
  Broadcast (BC) and 4 spreaded SW bands; 62 m, 49 m, 31 m and 25 m band.

  Enclosure made of leather covered pressboard, with rotating tuning dial and lateral recessed knobs. 

• Net weight (2.2 lb = 1 kg)
• 0.5 kg / 1 lb 1.6 oz (1.101 lb)

• Price in first year of sale
• 149,500.00 Cr$

• Mentioned in
• -- Schematic

• Author
• Model page created by Alvaro Prado. See "Data change" for further contributors.

• Other Models

• Here you find 4 models, 2 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Telespark - Feigenson - SA.