Mitsumi KKR Type
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| Manufacturer | Mitsumi |
|---|---|
| Family | Mitsumi hybrid switch |
| Switch type | Progressive rate |
| Keycap mount | Mitsumi mount |
Mitsumi KKR Type is an unconfirmed progressive rate Mitsumi hybrid switch type; the tactile equivalent is Mitsumi KKQ Type. KKR Type also covers stock keyboards and full custom OEM products made with these switches.
Description
KKR Type is externally identical to the better-known Mitsumi KPR Type; where KPR type uses a single membrane sheet for the keyboard matrix, KKR type uses a PCB. No specifications for KKR Type have been recovered.
It appears that the primary advantage of KKR Type over KPR Type is that the use of a PCB permits diodes, for N-key rollover; this can be seen in the Toshiba J31TP002 numeric keypad.[1] However, as KKR-E99AC does not use diodes, this appears to be an optional feature.
Keyboards
- Most Commodore Plus/4 (PCB model KKR-A67YC is also used for a different keyboard type in some machines)
- Mitsumi KKR-E99AC
- Toshiba J31TP002 numeric keypad[1]
- Sharp X1 (DSETK0013CE00)
References
- ↑ 1.0 1.1 ちゃたりたいね — 東芝 テンキーパッド J31TP002 MITSUMIメンブレン コイルスプリング
