Mitsumi KSD Type
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| Manufacturer | Mitsumi |
|---|---|
| Family | Mitsumi hybrid switch |
Mitsumi KSD Type is an unconfirmed Mitsumi hybrid switch type, using pressure pads over a two-layer membrane and PCB; the conductive pad equivalent is Mitsumi KSR Type.
The TI-99/4A keyboard has model number KSD-A46YN, while the Atari 800 keyboard below has model number KSD-A58AU, suggesting KSD Type for these keyboards and switches.
Keyboards
- Some Texas Instruments TI-99/4A
- Some Atari 800
Gallery
Atari 800
This example is dated December 1982.
Rear view showing underside of PCB
PCB with two membrane layers
PCB removed, revealing the sliders
Slider plate
Switch components; note the external return springs and cruciform sliders
