• Country
• Latvia (Latvia, Riga)

• Manufacturer / Brand
• Radiotehnika (RT) - after 1951 RRR Rigas Radio Rupnica; Riga

• Year
• 1973

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 79574

• • alternative name: A. Ss. Popow, Riga || Kandava Radio Works || Riga Popov Radiotechnika Works

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

• Number of Transistors
• 31

• Semiconductors
• ГТ322 ГТ322 ГТ313 ГТ313 ГТ322 ГТ322 ГТ322 ГТ322 ГТ322 КТ315 МП41 КТ315 КТ315 МП41 МП37 КТ315 КТ315 МП40 КТ315 КТ315 МП40 МП37 П213 П213 МП37 П213 КТ315 КТ315 КТ315 КТ315 КТ315

• Main principle
• Superheterodyne (common); ZF/IF 465/10700 kHz

• Tuned circuits
• 8 AM circuit(s)     12 FM circuit(s)

• Wave bands
• Broadcast, Long Wave, more than 2 x SW plus FM or UHF.

• Power type and voltage
• Line / Batteries (any type) / 110; 127; 220; 237 / 6 x 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical

• Power out
• 3 W (unknown quality)

• Material
• Various materials

• from Radiomuseum.org
• Model: Riga 104 - Radiotehnika RT - after 1951

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

• Dimensions (WHD)
• 390 x 242 x 135 mm / 15.4 x 9.5 x 5.3 inch

• Notes

• Der Reiseempfänger Riga 104 hat LW, MW, 6x KW (75m, 60m, 49m, 41m, 31m und 25m) und FM nach OIRT (65,8 - 73 MHz). Elektronisch abgestimmter FM- Tuner, Anschlüsse für TA/ TB, Antenne, Lautsprecher und Kopfhörer.

  Es gibt ein Exportmodell Riga 104-A. UKW heisst auf der Skala VHF, 87,5 - 108 MHz. Die Zeitzonenuhr beginnt bei Paris, MEZ.

• Net weight (2.2 lb = 1 kg)
• 6.3 kg / 13 lb 14 oz (13.877 lb)

• Author
• Model page created by Nikolaj Baranov. See "Data change" for further contributors.

• Other Models

• Here you find 100 models, 98 with images and 63 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radiotehnika (RT) - after 1951 RRR Rigas Radio Rupnica; Riga