Difference between revisions of "Key Tronic magnetic reed"
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==References== | ==References== | ||
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− | <ref name="ktc19790">[http://deskthority.net/keyboards-f2/key-tronic-corp-serial-no-19790-t11875.html] | + | <ref name="ktc19790">Deskthority — [http://deskthority.net/keyboards-f2/key-tronic-corp-serial-no-19790-t11875.html Key Tronic Corp. Serial No.19790]</ref> |
− | <ref name="ktchistory">[http://deskthority.net/keyboards-f2/interesting-history-of-key-tronic-t9529-30.html | + | <ref name="ktchistory">Deskthority — [http://deskthority.net/keyboards-f2/interesting-history-of-key-tronic-t9529-30.html Interesting History of Key Tronic]</ref> |
− | <ref name="ktcccho">[https://books.google.com/books?id=WSYjdR425p4C&pg=PA158&lpg=PA158&dq=key+tronic+reed+switch+keyboard&source=bl&ots=AtuiBI7bRm&sig=Fazup3PXUsVV9eDLnTr6mguz6U0&hl=en&sa=X&ved=0CFUQ6AEwCWoVChMI0_-wxO3myAIVRO8mCh0Segzr#v=onepage&q=key%20tronic%20reed%20switch%20keyboard&f=false | + | <ref name="ktcccho">Google Books — [https://books.google.com/books?id=WSYjdR425p4C&pg=PA158&lpg=PA158&dq=key+tronic+reed+switch+keyboard&source=bl&ots=AtuiBI7bRm&sig=Fazup3PXUsVV9eDLnTr6mguz6U0&hl=en&sa=X&ved=0CFUQ6AEwCWoVChMI0_-wxO3myAIVRO8mCh0Segzr#v=onepage&q=key%20tronic%20reed%20switch%20keyboard&f=false Line in "Complete Computer Hardware Only"]</ref> |
− | <ref name="ktccustom">[http://imgur.com/a/KFnC2 | + | <ref name="ktccustom">Imgur — [http://imgur.com/a/KFnC2 Photos of custom Key Tronic keyboard]</ref> |
− | + | </references> | |
− | |||
− | <references | ||
[[Category:Key Tronic switches]] | [[Category:Key Tronic switches]] |
Latest revision as of 11:32, 23 January 2018
This article is a stub. You can help Deskthority by expanding it.
This article requires additional photographic illustration — infobox image, and additional disassembly to clarify the construction |
Manufacturer | Key Tronic |
---|---|
Switch type | Linear |
Sense method | 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]
- KTC A 24956
- KTC A65-00627-021 PCB-002J
References
- ↑ Deskthority — Key Tronic Corp. Serial No.19790
- ↑ Deskthority — Interesting History of Key Tronic
- ↑ Google Books — Line in "Complete Computer Hardware Only"
- ↑ 4.0 4.1 Imgur — Photos of custom Key Tronic keyboard