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| version 2.1.0 |
| Part | Date | Title | Status |
|---|---|---|---|
| DEC-8E-HR2B-D-DK8-EP | PDP-8/E Programmable Real Time Clock Option | Online | |
| DEC-8E-HR2B-D-KA8 | PDP-8/E Positive I/O Bus Interface Option | Online | |
| DEC-8E-HR2B-D-KD8 | PDP-8/E Data Break Interface Option | Online | |
| DEC-8E-HR2B-D-KM8 | PDP-8/E Memory Extension and Timeshare Option Manual | Online | |
| DEC-8E-HR2B-D-KP8 | PDP-8/E Power Fail and Automatic Restart Option | ||
| DEC-8E-HR2B-D-MI8 | PDP-8/E Hardware Bootstrap Loader | ||
| DEC-8E-HR2B-D-MR8 | PDP-8/E Read Only Memory Option | ||
| DEC-8E-HR2C-D | 1973-02 | PDP-8/E, PDP-8/F & PDP-8/M Maintenance Manual Volume 2: Internal Bus Options | Online |
| DEC-8E-HR3B-D | PDP-8/E Maintenance Manual Volume III | ||
| DEC-8E-HR3B-D-CR8/CM8 | PDP-8/E Card Reader Options |