The 1983 patent for Cherry MX is for what we now know as MX Blue.
However, [wiki]Cherry MX White[/wiki] "Type B" is alleged to be the forerunner of blue and to have been introduced in 1989.
Old keyboards do tend to be MX Black, so was there really a delay of five to six years before the click version went into production? I only ever collected four dated examples, and those do back to 1989:
http://telcontar.net/KBK/Keycombo/switch.php?id=39
Actual dated examples of any of the albino types (Type A and Type B White, albino Black etc) seem not to exist at all, but Type B White would have had a short life if Blue was around in the same year.
Earliest MX Blue?
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Daniel Beardsmore
- Location: Hertfordshire, England
- Main keyboard: Filco Majestouch 1 (home)/Poker II backlit (work)
- Main mouse: MS IMO 1.1
- Favorite switch: Probably not whatever I wrote here
- DT Pro Member: -
- Contact:
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thedford
- Location: Washington State
- Main keyboard: HHKB pro II
- Main mouse: logitech mouseman+ dual optical
- Favorite switch: many
- DT Pro Member: -
I have this old cherry portable computer.
I think it has albino switches in it.
or maybe its something different all together.
the bottom one is a newer mx switch.
while the top one is from the 286 portable computer.
I think it has albino switches in it.
or maybe its something different all together.
the bottom one is a newer mx switch.
while the top one is from the 286 portable computer.
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Daniel Beardsmore
- Location: Hertfordshire, England
- Main keyboard: Filco Majestouch 1 (home)/Poker II backlit (work)
- Main mouse: MS IMO 1.1
- Favorite switch: Probably not whatever I wrote here
- DT Pro Member: -
- Contact:
Curious. The 286 was introduced in 1982 and the 386 in 1985, so if your portable was made prior to the 386 being introduced, that would be a very old switch.
I think it's too much to hope to find the switch part number in the laptop's service manual!
I think it's too much to hope to find the switch part number in the laptop's service manual!
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thedford
- Location: Washington State
- Main keyboard: HHKB pro II
- Main mouse: logitech mouseman+ dual optical
- Favorite switch: many
- DT Pro Member: -
unfortunately there was no manual that came with the device i've got.
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Daniel Beardsmore
- Location: Hertfordshire, England
- Main keyboard: Filco Majestouch 1 (home)/Poker II backlit (work)
- Main mouse: MS IMO 1.1
- Favorite switch: Probably not whatever I wrote here
- DT Pro Member: -
- Contact:
The service manual may be on the Internet — you haven't said what this thing is yet, or what dates are listed on ICs, PCBs, labels etc.
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thedford
- Location: Washington State
- Main keyboard: HHKB pro II
- Main mouse: logitech mouseman+ dual optical
- Favorite switch: many
- DT Pro Member: -
-
Daniel Beardsmore
- Location: Hertfordshire, England
- Main keyboard: Filco Majestouch 1 (home)/Poker II backlit (work)
- Main mouse: MS IMO 1.1
- Favorite switch: Probably not whatever I wrote here
- DT Pro Member: -
- Contact:
Ah, so it's from 1988, so that puts it just slightly older than the claim of 1989 for that switch.