TC-640A
| Brand | Sony |
| Function | Tape Machine (Reel to Reel Tape Recorder) |
| Produced | 1973-1974 |
| Country | Japan |
| Form Factor | Tabletop |
| Dimensions | 370 x 395 x 243mm |
| Weight | 15kg |
| Frequency Response | 20Hz to 25kHz (7 1⁄2 ips) |
| Motor | 2 x reel, 1 x capstan |
| Heads | 1 x playback, 1 x record, 1 x erase |
| Reel Size | up to 7 inch |
| Speed | 3 3⁄4 7 1⁄2 ips |
| Channels | 4 Track, 2 Channel |
| Links | Hifi Engine |