680A
| Brand | Altec Lansing, Altec |
| Manufacturer | Altec Lansing Corporation |
| Function | Microphone |
| Produced | 1958 |
| Country | United States |
| Model ID | 680A Acoustic Gate |
| Form Factor | Handheld / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 3.8 × 3.8 × 17.8 cm (W × H × D) |
| Weight | 0.5lbs |
| Frequency Response | 30Hz-15kHz |
| Element Type | Dynamic |
| Output Impedance | 30/50Ω, 150/250Ω, 20kΩ (Selectable) |
| Output Level | -58dBm/10dynes/cm² |
| Finish | Black and Green |
| MSRP (1958) | $96 |