Alps SKFR/SKFS
Alps SKFR/SKFS series comprised the following in the 1993 catalogue:
| Part | Series | Slider | Type | Description |
|---|---|---|---|---|
| SKFRAC | SKFR | Black | Linear | |
| SKFRAD | SKFR | Yellow | Linear | Short depth |
| SKFRFA | SKFR | Black | Linear | Red LED |
| SKFRFB | SKFR | Black | Linear | Green LED |
| SKFRFC | SKFR | Black | Linear | Amber LED |
| SKFSAA | SKFS | White | Tactile |
Two approaches to LEDs were taken. SKFRAD has a short front-to-back depth and leaves room for an external LED, while SKFRFA–C support an internal LED. A switch matching the description of any of SKFRFA–C has yet to be seen in the wild.
SKFSAA is a tactile switch, although the design produces a subtle click.
SKFRAC
SKFRAD
SKFSAA