Micro Switch TC Series

Micro Switch TC is a series of touch panel keyboards. These keyboards were advertised as having snap discs within each key to provide tactile feedback, although keyboards could be ordered without them. Nominal travel was 0.016″, or 0.4 mm, a tenth of typical 4 mm key travel. Rated lifetime was 2 million cycles with snap discs, or 5 million cycles without.

Documentation

The following material was scanned by Bitsavers unless otherwise noted:

• Keyboards advertisement, Electronic Engineers Master 1983–84 Volume 1
• Keyboards advertisement, Electronic Engineers Master 1985–86 Volume B