This guy sells new beam-spring keyboards with optional solenoids. https://www.modelfkeyboards.com

I have never seen one in person.

kps 2 hours ago | parent | next [-]

Those are buckling spring. Beam springs are older and different.

	▲	timw4mail 2 hours ago \| parent [-]
		There are new models that are recreating beam spring too. (Although I don't think they are in stock yet).

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tristor 32 minutes ago | parent | prev [-]

I have one, the reproduction of the model F104, and it's great. However I no longer use it daily as I've since built a custom ergonomic mechanical keyboard to do the same duty. I did not opt for the solenoid. The F keyboards use buckling springs, just like the M keyboards, the beam-spring keyboards are of a different design.