7 Transistor TR-725
Sony Corporation; Tokyo
- Country
- Japan
- Manufacturer / Brand
- Sony Corporation; Tokyo
- Year
- 1962
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 82418
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Transistors
- 7
- Main principle
- Superheterodyne (common); ZF/IF 455 kHz; 3 AF stage(s)
- Tuned circuits
- 5 AM circuit(s)
- Wave bands
- Broadcast and Short Wave (SW).
- Power type and voltage
- Dry Batteries / 1 x 9 Volt
- Loudspeaker
- -Loudspeaker incorporated, but system not known.
- Material
- Plastics (no bakelite or catalin)
- from Radiomuseum.org
- Model: 7 Transistor TR-725 - Sony Corporation; Tokyo
- Shape
- Very small Portable or Pocket-Set (Handheld) < 8 inch.
- Dimensions (WHD)
- 119 x 66 x 30 mm / 4.7 x 2.6 x 1.2 inch
- Notes
-
SW: 3.9 ... 12 MHz
Case in grey or cream colours. Leather bag was optional.
Price in US: $39.95
- Price in first year of sale
- 8,800.00 JPY
- Source of data
- -- Schematic
- Mentioned in
- Advertisement on Quattroruote magazine - December 1962
- Author
- Model page created by Alessandro De Poi. See "Data change" for further contributors.
- Other Models
-
Here you find 3931 models, 3791 with images and 950 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Sony Corporation; Tokyo
Collections
The model 7 Transistor is part of the collections of the following members.