• Country
• Soviet Union

• Manufacturer / Brand
• Unknown - CUSTOM BUILT: Soviet Union

• Year
• 1970 ??

• Category
• Commercial Transmitter & Receiver (TRX not Amateur)

• Radiomuseum.org ID
• 94120

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superhet, double/triple conversion

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 7,5 Volt

• Loudspeaker
• - For headphones or amp.

• Power out
• 0.1 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Lastočka {Ласточка} 20RTP-2 {20РТП-2} - Unknown - CUSTOM BUILT: Soviet

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

• Dimensions (WHD)
• 210 x 80 x 40 mm / 8.3 x 3.1 x 1.6 inch

• Notes
• Used for comunication with same portable FM transceivers or with stationary transceiver in range 33-46 MHz. The possiblity contact distance between two transceivers 20RTP-2 is about 1 km, using "Kulikov" type 1000-1025 mm antenna. Work time with charge battery about 8 hours.

• Net weight (2.2 lb = 1 kg)
• 0.9 kg / 1 lb 15.7 oz (1.982 lb)

• Mentioned in
• - - Data from my own collection

• Author
• Model page created by Zenonas Langaitis. See "Data change" for further contributors.

• Other Models

• Here you find 172 models, 157 with images and 37 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unknown - CUSTOM BUILT: Soviet Union