M400
| Brand | Mellotron |
| Function | Synthesizer (Tape-Based) |
| Produced | 1968-1970 |
| Country | UK |
| Form Factor | Freestanding |
| Signal Path | Analog Hardware |
| Links | Manufacturer Page · Sound on Sound Review · Mellotron Model Info Page |
| Brand | Mellotron |
| Function | Synthesizer (Tape-Based) |
| Produced | 1968-1970 |
| Country | UK |
| Form Factor | Freestanding |
| Signal Path | Analog Hardware |
| Links | Manufacturer Page · Sound on Sound Review · Mellotron Model Info Page |