TR-712
Sony Corporation;: TR-712 [Radio] ID = 691645 933x615
Select picture or schematic to display from thumbnails on the right and click for download.
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| Year: 1958 | Category: Broadcast Receiver - or past WW2 Tuner | ||||
| Semiconductors (the count is only for transistors) | 7: 2T7 2T7 2T7 2T6 2T6 2T8 or. 2T6 or. 2SB52 2T8 or. 2T6 or. 2SB52 1T23 1T51 |
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| Main principle | Superheterodyne (common); ZF/IF 455 kHz; 3 AF stage(s) |
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| Tuned circuits | 5 AM circuit(s) |
| Wave bands | Broadcast only (MW). |
| Details | |
| Power type and voltage | Dry Batteries / 3 × 1,5 Volt |
| Loudspeaker | Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 12 inch = 30.5 cm |
| Power out | 0.12 W (0.2 W max.) |
| from Radiomuseum.org | Model: TR-712 - Sony Corporation; Tokyo |
| Material | Plastics (no bakelite or catalin) |
| Shape | Portable set > 8 inch (also usable without mains) |
| Dimensions (WHD) | 11.5 x 7 x 4.5 inch / 292 x 178 x 114 mm |
| Notes | Two versions of this model are known with a variation in the push pull output transistors.
Known case colours are, blue, bone, beige & olive green. Ian Batty has written a very informative article on this model in the Silicon Chip magazine, March, 2017. . |
| Net weight (2.2 lb = 1 kg) | 1.5 kg / 3 lb 4.9 oz (3.304 lb) |
| Price in first year of sale | 59.00 Dolar |
| Source of data | -- Original prospect or advert |
| Mentioned in | Silicon Chip, March 2017, page 90 |
Model page created by Hugo Sneyers. See "Data change" for further contributors.
All listed radios etc. from Sony Corporation; Tokyo
Here you find 3567 models, 3420 with images and 754 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
