Our replica of the first affordable scientific calculator, made by Sinclair in 1973/4. Amazingly, Sinclair was able to cram full trig, log, and inverses, in scientific notation, into the simple TI 4-function calculator chipset- a hacking marvel, and a useful and cute device! USB charging with a nifty period manual to boot!
Fully open source: https://github.com/peaceloveandhappiness/SinclairScientific
Limited Edition of 50. These are the last 10! Never to be made by us again.
Approximate size: 2" x 4.5" x .5