Wiki Q and A

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Blaise170
ALPS キーボード

17 Apr 2018, 20:51

You could always archive the pages with archive.org and then link to it from a page. Just remember not to use any images without permission from the seller first.

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ScottPaladin

17 Apr 2018, 21:27

Blaise170 wrote: You could always archive the pages with archive.org and then link to it from a page. Just remember not to use any images without permission from the seller first.
K, thanks. Sadly taobao won't work with archive.org, but I can at least do the ebay one that way.

User avatar
Blaise170
ALPS キーボード

17 Apr 2018, 21:32

Well in the case of sites like that, you can always use http://archive.today and then archive.org the archive.today site. :P

http://archive.li/Aepub

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ScottPaladin

17 Apr 2018, 22:04

First part of that works a treat but archive.org is giving me an error when trying to archive the archive.today site.

http://archive.li/fCnot

User avatar
Blaise170
ALPS キーボード

17 Apr 2018, 22:08

Hm okay. I'm not sure how long archive.today keeps their data stored.

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ScottPaladin

17 Apr 2018, 22:14

They say its "Virtually forever" but who knows how long in practice. Probably better than taobao though. Thanks for the assist.

SneakyRobb

26 Nov 2018, 15:59

Daniel Beardsmore wrote: The identifying shot for SKCP is here:

photos-f62/canon-typewriter-keyboards-t4242.html

Yours above look the same.

It seems that there are versions without the plate retention clip bars, as shown in the photos on the SKCP wiki page. Maybe those are another series (like SKCO or SKCQ), or maybe they are just a variant model. It's highly unlikely that we will find out!

Alps plate spring switches from the 5576 and the P70 come in two kinds. They are the same except for the bottom half of the switch/it's mounting method. All plate springs have the prongs rotate 90 degrees versus other alps switches, so you cant just pop them into another alps pcb.

Basically early plate springs are plate mounted. Later plate springs can't be plate mounted.

early
Earlier switches are plate mount and have a different bottom half case that is capable of clipping into a plate similar to any common alps switch. They have two prongs for soldering coming out of the bottom. These prongs are the contacts.
If you look at this image
wiki/File:IBM_23F3212_--_switch_disassembled.jpg

You see that the switch has a housing that clips into a plate. As well you can see by the leaf sandwhich there are two black plastic nubbins. The space beside the nubbins is empty.


later
The PCB mount switches have a bottom base that is not capable of clipping into a plate. It does not have any clipping mechanism on the switch. Instead there are the two lead contacts just like the plate mount, but on the other side of the switch is a retention bar that provides two more prongs for soldering to the board. So the PCB mount switches are held in place by 4 solder points. A pretty "sturdy-ish" cheap method.
In this image by sandy by the nubbins you can see the metal bar.
http://sandy55.fc2web.com/keyboard/ibm_ ... sp_sw3.jpg

I have desoldered many of the later switches and they are all held in place by 4 prongs.

If you want to make a custom plate spring small board you will need to design a pcb that can hold the extra prongs. Or try to get the plate mounted switches variant

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