Eevblog 1479 – is your calculator wrong?
Is your calculator WRONG? It could be! Looking at the issue of implied multiplication and how it can affect your…
Eevblog #1332 – facit mechanical calculator!
Teardown (partial) of a Facit C1-13 13 digit mechanical calculator from 1967. John Wolff's mechanical calculator website: http://www.johnwolff.id.au/calculators/Tech/FacitC1-13/C113.htm How pinwheel