Those who have used various classic HP calculators in the past may be interested in this:

https://www.swissmicros.com/products

These are clones of various older calculators.

I bought a DM42n last year. I didn't need it. I don't use it so often that I can justify its purchase. Still, wow, I do so enjoy working with it. It's one of those tools that just feels good to use.

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SirHumphrey 3 hours ago | parent [-]

There is a certain joy in working with RPN and in using a piece of technology that was designed as a tool, not as a toy or an educational appliance.

With phone emulation, I probably need half a calculator. I have three.

	▲	kstrauser an hour ago \| parent [-]
		That's so true. It's custom-built to do exactly one thing, as efficiently and ergonomically as possible. I love any tool like that.