TR-690
Crown Radio Corp.; Tokyo
- Country
- Japan
- Manufacturer / Brand
- Crown Radio Corp.; Tokyo
- Year
- 1960 ?
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 107393
-
- alternative name: Asahi Radio Mfg. Co., Ltd
Wolfgang Lohrie
Wolfgang Lohrie
Wolfgang Lohrie
Wolfgang Lohrie
- Number of Transistors
- 6
- Main principle
- Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
- Tuned circuits
- 5 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Dry Batteries / 9 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.5 cm = 2.2 inch
- Power out
- 0.04 W (unknown quality)
- Material
- Plastics (no bakelite or catalin)
- from Radiomuseum.org
- Model: TR-690 - Crown Radio Corp.; Tokyo
- Shape
- Very small Portable or Pocket-Set (Handheld) < 8 inch.
- Dimensions (WHD)
- 60 x 105 x 25 mm / 2.4 x 4.1 x 1 inch
- Notes
-
Colors: black - green - blue with gold trim.
Some models show 'Okinawa' and some show 'Japan' as location of manufacture.
- Net weight (2.2 lb = 1 kg)
- 0.4 kg / 0 lb 14.1 oz (0.881 lb)
- Source of data
- -- Original-techn. papers.
- Literature/Schematics (1)
- -- Original prospect or advert
- Author
- Model page created by Peter Hoddow. See "Data change" for further contributors.
- Other Models
-
Here you find 354 models, 322 with images and 84 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Crown Radio Corp.; Tokyo
Collections
The model is part of the collections of the following members.