Difference between revisions of "Key Tronic magnetic reed"
m (Text replacement - "Category:Magnetic reed switches" to "Category:Reed switches") |
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{{stub}} | {{stub}} | ||
− | + | {{TODO photo|more=true|reason=infobox image, and additional disassembly to clarify the construction}} | |
{{Infobox dswitch | {{Infobox dswitch | ||
− | |||
| image name = | | image name = | ||
| manufacturer = [[Key Tronic]] | | manufacturer = [[Key Tronic]] | ||
| inventor = | | inventor = | ||
| product code = | | product code = | ||
− | | switch type = [[ | + | | switch type = [[Linear]] |
− | | contact mechanism = [[ | + | | contact mechanism = [[Reed]] |
| lifetime = | | lifetime = | ||
| peak force = | | peak force = | ||
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key_tronic_reed_v2_guts.jpg|Internal mechanism | key_tronic_reed_v2_guts.jpg|Internal mechanism | ||
Key_tronic_reed_switch_reed_v2.jpg| Reed | Key_tronic_reed_switch_reed_v2.jpg| Reed | ||
+ | </gallery> | ||
+ | |||
+ | <gallery> | ||
+ | KeyTronic_Magnetic_Reed - Opened_1.jpg|Switch case removed from reed switch | ||
+ | KeyTronic_Magnetic_Reed - Opened_2.jpg|Switch case top separated from base | ||
+ | KeyTronic_Magnetic_Reed - Opened_3.jpg|Bottom view of case top containing plunger | ||
+ | KeyTronic_Magnetic_Reed - Parts_1.jpg|Switch parts | ||
+ | KeyTronic_Magnetic_Reed - Parts2.jpg|Switch parts | ||
+ | KeyTronic_Magnetic_Reed - Reeds1.jpg|Reed switch | ||
+ | KeyTronic_Magnetic_Reed - Reeds2.jpg|Reed switch | ||
+ | KeyTronic_Magnetic_Reed - Retaining_screws.jpg|Single unit switch PCB retaining screws and reed switch solder points | ||
+ | KeyTronic_Magnetic_Reed - green.jpg|Reed switch, green glass | ||
+ | KeyTronic_Magnetic_Reed - yellow.jpg|Reed switch, yellow glass | ||
</gallery> | </gallery> | ||
Line 53: | Line 65: | ||
* Key Tronic Corp. 65-0201-09 | * Key Tronic Corp. 65-0201-09 | ||
* Custom Key Tronic Corp. Keyboard<ref name="ktccustom" /> | * Custom Key Tronic Corp. Keyboard<ref name="ktccustom" /> | ||
+ | * KTC A 24956 | ||
+ | * KTC A65-00627-021 PCB-002J | ||
==References== | ==References== | ||
<references> | <references> | ||
− | <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