2-Transistor Boy's Radio TR-220
Union Co. Ltd.; Yokohama
- Country
- Japan
- Manufacturer / Brand
- Union Co. Ltd.; Yokohama
- Year
- 1960 ?
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 315320
Drei Elkos getauscht
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Transistors
- 2
- Main principle
- TRF with diode detector; 2 AF stage(s); Reflex
- Tuned circuits
- 1 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Dry Batteries / 1 x 9 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 cm = 2.4 inch
- Power out
- 0.03 W (unknown quality)
- Material
- Plastics (no bakelite or catalin)
- from Radiomuseum.org
- Model: 2-Transistor Boy's Radio TR-220 - Union Co. Ltd.; Yokohama
- Shape
- Very small Portable or Pocket-Set (Handheld) < 8 inch.
- Dimensions (WHD)
- 72 x 110 x 31 mm / 2.8 x 4.3 x 1.2 inch
- Notes
-
Screw-on telescopic antenna, earphone jack, mounting bracket. Ferrite antenna is vertical in the device, so it is best to operate horizontally.
Aufschraubbare Teleskopantenne, Ohrhörerbuchse, Aufstellbügel. Ferritantenne ist senkrecht im Gerät, daher am Besten liegend zu betreiben.
- Net weight (2.2 lb = 1 kg)
- 0.260 kg / 0 lb 9.2 oz (0.573 lb)
- Author
- Model page created by Günther Stabe † 19.8.20. See "Data change" for further contributors.
- Other Models
-
Here you find 7 models, 7 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Union Co. Ltd.; Yokohama
Collections
The model 2-Transistor Boy's Radio is part of the collections of the following members.