Could you help me identify these keyboards?

[hammelgammler]

Hey guys,

i just saw three keyboards which i don't really know much about.
Could me maybe help me identify these?

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Best regards,
David

[ramnes]

Key Tronic = (good) rubber domes. Can't help on the first one.

[elecplus]

The 1st one is DEC keyboard, prob an LK401 or similar. XMIT just took one home; I think it is also rubber dome. They meant to do a LOT of data entry, and usually last for at least 2 years in a heavy use production environment.

[XMIT]

Yup. But mine came with a DEC VT420 attached to it!

[elecplus]

A working one, no less

[hammelgammler]

Just found another one, does anyone know what keyboard this one is?

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[ramnes]

Looks like an OK-100M but there are some little differences.

[hammelgammler]

Well yeah it seems to look like an OK-100M. Thank your for your answer.

[Findecanor]

Top one is a DEC LK401. Rubber dome for DEC terminals. Not useful in any way. I have had one.
Second is the cheap version of Key Tronic keyboards. Pretty nice feel for a rubber dome, but flimsy construction and flat backplane. I have worn through a few of these since the mid-90s, not happy with lesser rubber dome keyboards.
Third is a large version of Key Tronic rubber dome. The LED-label does not say Ergo Force, which it should if it is. The Space bar is grounded, indicated by it being grey so that you can press it to get rid of static electricity. I've had a large non-Ergo Force Key Tronic without the grey space bar and it was both stiff and mushy and not nice at all.

Last, looks like a Chicony 5192. It should have mechanical switches, but which one? - that is the question. Keyboards with the same model number came with different switches.

[ramnes]

Yeah, definitely a 5192. Good luck on the switches!