[Photos] 454th MX Blue G80-1000 ever made?

As part of my latest recycler haul I came across a very early G80-1000 HFD with very special stem hues and a super low serial (454)

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I have seen some discussions regarding early MX Blues around here lately and have seen various shades of MX Blue stems but this is my first board with such a variety of stem hues!
Wodan
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Unread post26 Aug 2017, 07:22

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Wodan
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That's almost Alps-levels of colour discrepancy! :o :shock: :mrgreen:
Khers
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Unread post26 Aug 2017, 07:56

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Khers
 
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Let's make stems!

- What colour?

Blueish!
Wodan
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Unread post26 Aug 2017, 08:17

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Wodan
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I hear bluish wodios are the best! Especially when jailhoused!
Khers
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Unread post26 Aug 2017, 08:20

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If these are clones they might not sell so well in China, otherwise it's $$$ for the desoldering.

Come on Wodan, don't let me down now... :maverick:
seebart
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Unread post26 Aug 2017, 08:42

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seebart
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At a guess, the date code on that is "A29", making it 1988. That's about right; I don't recall seeing MX Blue before around 1989. This is strange, because MX Blue is basically what was in the Cherry MX patent filed in 1983. So did Cherry take several years to get around to making the switch that they patented, or were the clicky switches indeed colourless before that date?

Note that the patent says nothing about audible feedback, which may explain why the clear types don't click. The objective according to the patent, and per all literature, is "movement differential" (hysteresis) so maybe blue represents a point where Cherry thought, you know what, let's make one that really does click, since people want that these days. (Note that Cherry did not knowingly make clicky switches in any prior series; tactile, yes, but clicky, no.)

I can't tell from the photos, but there is a suggestion that they're maybe closer to sky blue than regular blue. The photo needs a regular blue switch included to show what colour it appears under the lighting conditions in question.
Daniel Beardsmore
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Unread post26 Aug 2017, 11:23

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Your info should be wrong Daniel, if you look at the scan of the G80-0520 flyer you'll see that the board did exist with "tactile click" switches which are today's mx blues. These boards are really rare and mx blacks were always the first choice but sometimes they used mx blues too. I have pictures of a G80-1800 prototype from an earlier time in 1988 which has really dark mx blue switches too. So maybe they changed the color sometime in ~1989. I'm not sure if we know the dates of the dark blue boards in the wiki but maybe we find some connections
hansichen
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Unread post26 Aug 2017, 11:31

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Movement differential was the objective. My speculation is that Cherry didn't want the noise, and managed to muffle it. MX Blue may mark the point that they decided to make a variety that did emit sound, after which the deliberately quiet version with hysteresis was pigmented white to distinguish it.

The March 1988 part schema lists blue, white and clear separately, meaning that regardless of what the wiki says, pigmented white goes back as far as 1988. Pigmented white has movement differential, while blue and green have '"Click" movement differential. Click clear is either restricted to the years for which we have no documentation, or was never listed.

Quite simply, we need more data, and none of the people who've owned keyboards with the rare switches have ever documented them properly, so we're still guessing about things we should have known in detail for years. I toy with Cherry research, but I tend to give up because it's a waste of time because no-one hands over the data.
Daniel Beardsmore
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Unread post26 Aug 2017, 12:03

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Any chance you could get an exploded switch shot of this vs. a modern MX blue for comparison? Or even just stems, since the other parts are probably almost the same.
scottc
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Unread post26 Aug 2017, 12:57

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Will go full macro on those little mofos
Wodan
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Unread post26 Aug 2017, 13:39

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