TFM-1S
| Brand | Heathkit |
| Manufacturer | Daystrom Ltd. |
| Function | Radio Tuner (Kit) |
| Produced | 1966 |
| Country | United States |
| Form Factor | Standard Width |
| Signal Path | Analog Hardware |
| Dimensions | 39.6 × 9.5 × 29.2 cm (W × H × D) |
| Frequency Response | 20Hz-15kHz ±3dB |
| Tuning Range (FM) | 88MHz-108MHz |
| Finish | Brushed Gold and Walnut |
| MSRP (1966) | £24 18s |
| Channels | 2 Channel |
| Notes | Composed of TFM-T1 RF Tuning Unit (£5 16s) and TFMA-1S (Stereo) IF Amplfier/Power Supply (£19 2s). Requires optional walnut cabinet P/N 91-508 (£2 5s) |