Alps SKCC series
|Introduced||1980 or earlier|
|Sense method||Metal leaf|
|Switch mount||Plate mount|
Alps SKCC series (formerly known as Alps vintage tee mount) is the forerunner of the Alps SKCL/SKCM series, and shares the same switchplate design. The switch uses a tee mount, while keycaps use a cruciform slot. See also the virtually identical General Instrument Series S950.
Conventionally, the pins are to the side of the switch instead of the front/back. However, since the keycaps support all four orientations, some keyboards have the switches rotated by 90° with the same pin orientation as SKCL/SKCM, and at least one keyboard used mixed orientations. Mounting holes are 14 mm square.
The cream switches were used in a Radio Shack TRS-80 Model I with ICs dating to early 1979.
Full travel measures between 3.33 and 3.47 mm, based on a selection of cream, green and tall cream switches. This would be consistent with a specification of 3.5−5% mm.
The switch bears the oval Alps logo on the bottom.
The side tabs are much harder to unlatch than SKCL/SKCM series, and noticeably thinner, and consequently face a much greater risk of snapping clean off when trying to lever them open. When opening a switch, it helps to insert a thin object underneath the tab on one side, prior to opening the tab on the other side, to stop the tab on the other side from closing again. The cocktail stick method used with Alps SKCL/SKCM series is not possible with SKCC, as the ledge that rests on the mounting plate overhangs the tabs.
|Alps SKCC Black|
|Alps SKCC Grey|
|Alps SKCC Cream|
|Alps SKCC Green||SKCCBK|
|Alps SKCC Tall Cream||SKCCAF|
|Alps SKCC Lock|
|Alps SKCC Cream LED|
|Alps SKCC Side-Angled Cream|
Unmapped part numbers
The following part numbers are known to exist (surplus stock no longer available), but no photograph exists of them and they have not been assigned to a moniker above: