Difference between revisions of "Key Tronic magnetic reed"
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[[Category:List of all keyboard switches]] | [[Category:List of all keyboard switches]] |
Revision as of 19:10, 22 September 2016
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Manufacturer | Key Tronic |
---|---|
Switch type | Linear |
Sense method | Magnetic reed |
Contents
History
General consensus indicates that Key Tronic Corp. produced reed switch keyboards during the 1970s. Specific dates and catalog information have not been discovered.[1][2][3]
Variants
Variant 1
- The keyswitch housings were produced in several "bank" configurations. The minimum housing configuration, 1, was used for space bars and singleton keys. The maximum, 6, was used for central rows.
- The upper housing contains slider guides, but is otherwise a simple rectangular enclosure.
- The lower housing contains conical plastic projections that stand upright, holding the reed valves and covering them completely.
- The slider is a one piece mechanism containing a circular magnet and spring. The spring compresses the magnet against the top of the slider and provides resistance to counteract fingers and gravity.
- The housing is held together by a screw and nut; a third nut holds the assembled switch to the PCB.
- The reed is soldered directly to the PCB.
Variant 2
Variant 2 is similar to variant 1. The switches feature a different slider top, cut off reed enclosure tips, and a spring with fewer coils. Those design choices were likely made to decrease material cost and reduce keyswitch travel distance. Additional differences are visible in the gallery.[4]
Feel & Sound
Variant 1 is exceptionally linear and fairly smooth. A light "ting" or "ping" can be heard when the switch activates. It is not a light switch. Variant 2 should be equally linear due to its design, though that fact cannot be verified.
Availability
The switches are difficult to find. The cause is unknown; factors other than switch rarity, such as false identification, could play a role.
Keyboards
- Key Tronic Corp. 65-0201-09
- Custom Key Tronic Corp. Keyboard[4]
References