Philips P2812

User avatar
Kurk

06 Jan 2013, 15:27

Philips_Data_Entry_smallpic.jpg
Philips_Data_Entry_smallpic.jpg (84.78 KiB) Viewed 1749 times
I've bought this Philips P2812 keyboard which was advertised as a "Philips data entry keyboard". From the blurry pictures in the ad, I was hoping for a re-branded Model F. Meh, should have done more research. As far as I know now, it was sold with a Philips P3105 personal computer. This baby needed some serious cleaning but it came out rather well.
It has linear NMB Hi-Tek "space invader" switches which, in my opinion, feel rather similar to Cherry MX blacks. They are a pain to clean because the slider (space invader face) comes off with the key cap and putting this back on the base can be fiddly. Surprisingly, there aren't any stabilizers underneath the larger keys except for the space bar.
The legends look dye-subbed and the caps feel like PBT, not sure though.
The board doesn't seem to work on modern day PCs, although it comes with an AT DIN plug (5 connectors in a 180 degree arc); not via a DIN->PS/2 adapter nor with a DIN->PS/2->USB adapter chain. The LEDs light on shortly so the power should be ok. I haven't tried Soarer's converter yet, though.
DT user maxrunner apparently had a NIB one: http://deskthority.net/marketplace-f11/ ... tml#p89822

More pictures behind the spoiler.
Spoiler:
Dirty
Dirty
Philips_Data_Entry-01.jpg (265.71 KiB) Viewed 1749 times
Dirty space invaders
Dirty space invaders
Philips_Data_Entry-02.jpg (529.83 KiB) Viewed 1749 times
Label
Label
Philips_Data_Entry-05.jpg (208.73 KiB) Viewed 1749 times
Birthday
Birthday
Philips_Data_Entry-07.jpg (97.5 KiB) Viewed 1749 times
Top and bottom shell
Top and bottom shell
Philips_Data_Entry-10.jpg (268.15 KiB) Viewed 1749 times
PCB
PCB
Philips_Data_Entry-11.jpg (333.7 KiB) Viewed 1749 times
Cleaned space invaders
Cleaned space invaders
Philips_Data_Entry-12.jpg (304.04 KiB) Viewed 1749 times
Top view 1
Top view 1
Philips_Data_Entry-13.jpg (223.35 KiB) Viewed 1749 times
Top view 2
Top view 2
Philips_Data_Entry-21.jpg (279.64 KiB) Viewed 1749 times
Last edited by Kurk on 06 Jan 2013, 15:36, edited 2 times in total.

User avatar
Kurk

06 Jan 2013, 15:31

More pics:
Spoiler:
Side view, angle
Side view, angle
Philips_Data_Entry-22.jpg (261.08 KiB) Viewed 1745 times
Key caps detail
Key caps detail
Philips_Data_Entry-15.jpg (180.29 KiB) Viewed 1745 times
Switch detail 1
Switch detail 1
Philips_Data_Entry-16.jpg (191.76 KiB) Viewed 1745 times
Switch detail 2
Switch detail 2
Philips_Data_Entry-17.jpg (239.3 KiB) Viewed 1745 times
Caps top
Caps top
Philips_Data_Entry-18.jpg (237.25 KiB) Viewed 1745 times
Caps bottom
Caps bottom
Philips_Data_Entry-19.jpg (228.31 KiB) Viewed 1745 times

User avatar
maxmalkav
dye hard

06 Jan 2013, 15:53

NMB are a nice switch if you like stiff ones. Do you find them totally linear of feel some tactility?

maxrunner

06 Jan 2013, 16:22

Yep, i still have it. It's not mine but the owner wants to sell it. I can also confirm it doesn't work on modern machines. But i don't know about that converter Kurrk.

User avatar
Kurk

06 Jan 2013, 17:51

maxmalkav wrote:NMB are a nice switch if you like stiff ones. Do you find them totally linear of feel some tactility?
I feel no tactility whatsoever.

User avatar
Daniel Beardsmore

06 Jan 2013, 19:38

It's the tactile ones that confound me. I've concluded that the white follower arm at the back of black and cyan switches is the clicker, but I cannot identify anything in the remaining switches that makes them tactile. The linear switches in the keyboard above just look the same as tactile switches, i.e. completely linear. Also, what purpose the "eyes" serve, as some switches have them, and some don't. Eyes seem to be on the clicky ones, but some grey (tactile) ones have them, too.

NMB are on my growing list of people and companies who haven't responded (including Futaba, Monterey and SMK). It should be possible to get some details out of NMB — year introduced (probably 1985), year discontinued etc. Possibly specs. Preferably the correct product name!

Also, scroll down to the bottom of http://www7.ocn.ne.jp/~hisao/jiku.htm — there's a soap-dispenser-handle one that I've never seen anywhere else, alongside the typical blind white one, and the grey variety that does have eyes. And another Omron variety (slider with flat front and back instead of stepped). He doesn't say what keyboard that was in.

The keyboard cleaned up well, though; you should post that to the wiki too. Looks like it's an XT keyboard from a Philips P3100 or P3105 XT clone: http://geekhack.org/index.php?topic=5362.0

User avatar
Daniel Beardsmore

06 Jan 2013, 19:43

Ah, same as this Tandon version of the Hi-Tek 725: http://deskthority.net/keyboards-f2/pic ... t3909.html

What colour is the spacebar slider? They're often different.

maxrunner

07 Jan 2013, 16:27

Still trying to sell the one i have if anyone is interested.

User avatar
Daniel Beardsmore

07 Jan 2013, 16:43

Tactile?

maxrunner

07 Jan 2013, 17:52

It feels like the linear black MX's. Specifically the stiffness is identical too.

User avatar
Daniel Beardsmore

07 Jan 2013, 17:55

Ah, no, I'd be interested in a tactile or clicky one just to figure out how the blighters work. They all look linear to me!

User avatar
Kurk

07 Jan 2013, 21:29

Daniel Beardsmore wrote:...............What colour is the spacebar slider? They're often different.
The space bar switch is identical to rest but it has a stiffer spring. Oh, there's also a blob of green paint on it.
Attachments
P2812_space_bar_switch.jpg
P2812_space_bar_switch.jpg (63.78 KiB) Viewed 1616 times

User avatar
Daniel Beardsmore

07 Jan 2013, 22:00

Cheers. Yeah, it seems to depend on the board — some have the spacebar switch in a separate colour, others do not. The most bizarre is keyboards where the lock keys are not only a different colour, but a different shaped slider, with no explanation: http://kbd.rzw.jp/nmb/aq659zrt-101a/ — they loved their neon colours.

Wiki page updated with confirmation that spring is stiffer even though switch is the same colour.

User avatar
Daniel Beardsmore

08 Jan 2013, 18:59

OK, taking how far I got in trying to diagram this one, I've knocked up a measurements diagram, attached (I've taken care of this for anyone who can't draw). Could someone please fill in the measurements — I had a really hard time trying to figure out the shape of this one from photos due to perspective skew.
Attachments
NMB Hi-Tek measurements.png
NMB Hi-Tek measurements.png (29.47 KiB) Viewed 1528 times

User avatar
rzwv

20 Jan 2013, 07:03

NMB RT-101+ AQ659ZRT-725M HI-TEK Grey Slider Tactile
Spoiler:
RT-101_AQ659ZRT-725M_01.jpg
RT-101_AQ659ZRT-725M_01.jpg (370.22 KiB) Viewed 1422 times
RT-101+_AQ659ZRT-725M_11.jpg
RT-101+_AQ659ZRT-725M_11.jpg (402.44 KiB) Viewed 1422 times
RT-101+_AQ659ZRT-725M_19.jpg
RT-101+_AQ659ZRT-725M_19.jpg (854.14 KiB) Viewed 1422 times
YouTube, Typing
Spoiler:
Details http://kbd.rzw.jp/nmb/rt-101_aq659zrt-725m/

User avatar
Daniel Beardsmore

20 Jan 2013, 14:42

You should create a wiki page for that keyboard, and add the switch images to [wiki]NMB Hi-Tek[/wiki].

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