Exploring the IBM 4683 POS Matrix Keyboard P/N 76X0100

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sharktastica

05 Aug 2021, 23:19

I just got this interesting keyboard, and with seldom photos of it online, I thought I'd take some photos inside and out for everyone.

As some background, the IBM 4683 was the company's first PC-based point of sale system. The system is also known for having a buckling springs-based keyboard (P/N 76X0035, aka, the "Model M/AT"). This P/N 76X0100 keyboard however is an ortholinear-style keyboard using Key Tronic foam & foil switches, both relative oddities for IBM.

My article with annotations: https://sharktastica.co.uk/articles/76X0100_explore
matrix4683_front.jpg
matrix4683_front.jpg (1.09 MiB) Viewed 994 times
matrix4683_box_inside.jpg
matrix4683_box_inside.jpg (666.15 KiB) Viewed 994 times
matrix4683_back.jpg
matrix4683_back.jpg (747.63 KiB) Viewed 994 times
matrix4683_keycap_texture.jpg
matrix4683_keycap_texture.jpg (845.19 KiB) Viewed 994 times
matrix4683_keycap_under.jpg
matrix4683_keycap_under.jpg (949.49 KiB) Viewed 994 times
matrix4683_switch.jpg
matrix4683_switch.jpg (870.4 KiB) Viewed 994 times
matrix4683_sdl_54P8831_cable.jpg
matrix4683_sdl_54P8831_cable.jpg (956.13 KiB) Viewed 994 times
matrix4683_speaker.jpg
matrix4683_speaker.jpg (813.28 KiB) Viewed 994 times
matrix4683_microswitch.jpg
matrix4683_microswitch.jpg (771.14 KiB) Viewed 994 times
matrix4683_pcb_back.jpg
matrix4683_pcb_back.jpg (1.22 MiB) Viewed 994 times

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Weezer

06 Aug 2021, 02:35

Yeah these have been on eBay for quite a while. I was interested in them but was dissuaded by the foam and foil. These have a really cool look though.

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sharktastica

08 Aug 2021, 20:34

It's a shame indeed. That said, whenever I get a proper display cabinet, this is definitely a candidate for something to put into it.

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