Notes
This keyboard originally came into my possession with worn case texture and a yellowed set of Unicomp's sparkly blue-grey keycaps with IBM 5250 US English legends. The keyboard was partially restored with a brand-new Unicomp PC-122 case (original lock-light overlay also transferred to the new case) and a combination of Unicomp's pearl/pebble US and 3270 PC keycap sets, and several UK ISO and custom (Fn and 1u backspace) keycaps. In June 2024, an authentic replacement keycap set was fitted. This keyboard was also featured in my Differences between and classifications of 122-key Model Ms comparison topic.
| Full name | Affirmative YESboard 5250 PC 122-key Keyboard |
|---|---|
| Part number | AC40956 |
| Model number or feature code | 1225T |
| Type | Model M Type IV 122-key Host Connected Converged Keyboard |
| Nickname | Battlecruiser |
| Keyswitches | IBM membrane buckling springs |
| Feet | Single-setting elongated flip-out feet |
| Date of production | 2005-03-28 |
| Date of acquisition | 2020-10-05 |
