PEF
| Manufacturer | Serge Synthesizer |
| Function | Effect (3st generation modules) |
| Produced | 1977 |
| Country | USA |
| Form Factor | Modular - Eurorack |
| Signal Path | Analog Hardware |
| Notes | Pitch and envelope follower |
| Manufacturer | Serge Synthesizer |
| Function | Effect (3st generation modules) |
| Produced | 1977 |
| Country | USA |
| Form Factor | Modular - Eurorack |
| Signal Path | Analog Hardware |
| Notes | Pitch and envelope follower |