| Part Number | Distributor | Quantity Available | Buy from Distributor |
| ACST-257-1 | ALLIEDELECTRONICS | 528 | BUY |
| ACST-260 | Electro Sonic | 1031 | BUY |
| ACST-260 | Master Electronics | BUY | |
| ACST-260 | OnlineComponents.com | ||
| ACST-260-1 | Future | 4 | BUY |
| ACST-260-1A | Electro Sonic | 1165 | BUY |
| ACST-260-1A | Master Electronics | BUY | |
| ACST-260-1A | OnlineComponents.com | ||
| ACST-261-1 | ALLIEDELECTRONICS | 100 | BUY |
| ACST-261-1 | Electro Sonic | 1145 | BUY |
| ACST-261-1 | Master Electronics | BUY | |
| ACST-261-1 | OnlineComponents.com |