Jelco JKS-91

This article requires additional photographic illustration — need top views esp. for switch recognition page

Jelco JKS-91

Manufacturer	Jelco
Product code	JKS-91
Discontinued	Yes
Switch type	Tactile
Sense method	Conductive dome
Switch mount	Plate mount

Jelco JKS-91 is an integrated dome discrete key switch which appears to be modelled after the Alps SKCC series. Unlike the Alps integrated dome series, the JKS-91 uses two vertically-mounted contacts (which extend down as the legs) with a rubber dome that fits inside a vertically-mounted cartridge similar to a switchplate. The slider's vertical travel is converted to horizontal motion by way of an actuator leaf very similar to those in mechanical switchplates.

Keyboards

• MicroBee PC 85 (Model II) keyboard<ref name="NFB-MicroBee" />

Other equipment

• Teletrans EC-122 calculator (momentary and dummy; unconfirmed)<ref name="Reddit-Teletrans" />

Gallery

• 
  Low angle showing base and legs
• 
  Base removed
• 
  Rear view of "switchplate" cartridge
• 
  Return spring
• 
  Return spring and slider
• 
  Contact mechanism
• 
  Rubber dome and terminals
• 
  "Switchplate" disassembled, and terminals removed from the base

External links

• Microbee Technology — downloads — Jelco JKS91 repair guide. Retrieved 2015-07-28.

References

<references> <ref name="NFB-MicroBee">Nightfall Blog — MicroBee PC 85 (Model II) Keyboard Repair Dated 2013-07-24. Retrieved 2015-07-28.</ref> <ref name="Reddit-Teletrans">Reddit — [photos] I bought a "mechanical" calculator at an antique market</ref> </references>