Small Stone
| Brand | Electro-Harmonix |
| Function | Effect (Phase Shifter) |
| Produced | 1990s |
| Country | USA |
| Model ID | USA Version 4 |
| Form Factor | Footswitch |
| Signal Path | Analog Hardware |
| Notes | The fourth USA version of the Small Stone was published in the mid 90's (first USA reissue) and was the first USA version to have a status led, a very useful addition to make life easier for the gigging musician. A 3PDT (Tripple Pole Double Throw) footswitch is used to implement true-bypass switching. Again the circuitry and the board layout have been modified heavily from the previous versions, but it is still based on 5 CA3094AE single chip OTAs. |