|This article requires additional photographic illustration|
USw LMBW02 is an extremely rare switch from an unknown manufacturer. USw LMWW01 is a heavier weight version intended for a space bar.
According to Tai-Hao, the manufacturer was a now-defunct Japanese company whose name may be "Katano". No other details about the switch have survived.
The contact arrangement is a hybrid between a full switchplate and bare contacts: the actuator leaf and movable contact are the same part (where a "true" switchplate has a separate actuator leaf that engages a prong that presses on the contacts), but the contacts are held together by a plastic moulding.
A second pair of holes in the base permits an LED to be fitted to the switch; the LED is located to the corner of the switch.
- Tai-Hao TH-5150 (1987)
The example below is from Tai-Hao's own preserved TH-5150. The shell design is distinctly different.
- Deskthority — Tai Hao TH-5150-CAT
- Correspondence with Tai-Hao, 2017-03-08