05-11-2025, 05:23 PM
I still have my Sinclair scientific form 1974 that my dad got for me, still works and is so odd to use no one did (or still does) borrow it. I keep it a work to show people and it is older than my boss! It is in very good nick mainly because the battery of four cells was very expensive per unit of time of calculating. I still love RPN https://en.wikipedia.org/wiki/Reverse_Polish_notation calculators, I am not clever enough to use the modern ones. In my small collection I have an HP35 and 45 from the vintage era and a couple of Swiss Micros super dooper ones https://www.swissmicros.com/products.
Oh, and a few slide rules too, one is at work and I always do at least one calculation for a design on it for sheer fun.
Oh, and a few slide rules too, one is at work and I always do at least one calculation for a design on it for sheer fun.
I want a PNP valve!
