| EAI TR-20 Analog Computer, circa 1963 | |
| Model: | TR-20 |
| Manufacturer: | Electronic Associates, Inc. of West Long Branch, NJ |
| Features: | Fully transistorized. |
| Notes: | This unit was used at Penn State University. It came with a box of patch cords and bottle connectors, but no manuals or power cord. Operational state is unknown. I eventually located an Operator's Reference Manual, dated 1967. |
