- Country
- Poland
- Manufacturer / Brand
- PTR - Polskie Towarzystwo Radjotechniczne; Warszawa
- Year
- 1924–1928 ?
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 143564
- Number of Tubes
- 4
- Valves / Tubes
- Main principle
- TRF with regeneration; 3 AF stage(s)
- Tuned circuits
- 1 AM circuit(s)
- Wave bands
- Broadcast (MW) and Long Wave.
- Power type and voltage
- Storage and/or dry batteries
- Loudspeaker
- - For headphones or amp.
- Material
- Wooden case
- from Radiomuseum.org
- Model: 4 LE - PTR - Polskie Towarzystwo
- Shape
- Tablemodel, Box - most often with Lid (NOT slant panel).
- Price in first year of sale
- 255.00 ZL
- Source of data
- -- Original-techn. papers.
- Literature/Schematics (1)
- Zlote Lata Radia, Polen
- Author
- Model page created by Henryk Berezowski. See "Data change" for further contributors.
- Other Models
-
Here you find 13 models, 9 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from PTR - Polskie Towarzystwo Radjotechniczne; Warszawa