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Forum Index : Microcontroller and PC projects : Retro computing - sliderule

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RetroJoe

Senior Member

Joined: 06/08/2020
Location: Canada
Posts: 290
Posted: 03:00pm 08 Dec 2020
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  GerryL said    It used discrete components and an acoustic delay line for the memory plus a CRT for the display, amazing for its time


Wow, amazing museum piece! The 1960s “jet stream” design is classic.I assume it’s still working? Would love to see a video of in operation.

P.S. Nice work on the virtual slide rule, Jim. My dad had a K&E, and I remember playing with it and  being fascinated by the sheer mechanical precision of the thing. By the time I reached high school, “slide rule calculators” were already cheap enough that my generation didn’t learn how to use actual slide rules, but one of my science teachers did a multiply and divide demonstration for the class as a kind of novelty, and maybe to deliver a variation of “you kids are so soft, and have it so easy” lecture that I give my kids on a regular basis :)
Enjoy Every Sandwich / Joe P.
 
matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10316
Posted: 02:30pm 10 Feb 2021
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If you like slide rules check out this collection  

https://osgalleries.org/collectors/davis/davisthumbnails.cgi
 
paceman
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Joined: 07/10/2011
Location: Australia
Posts: 1329
Posted: 12:43am 11 Feb 2021
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Holey Moley, that's amazing. How would you manage to collect all those - and in good condition for a photo too.

I reckon one of the beauties of these old 'calculators' is that they also presented other related info to you - and that built up knowledge. A good example of that (for me anyway, probably not very interesting for most) is the circular one that shows various chemical radical groups and their Infra-Red vibrational wave lengths - a sort of whole chapter of info in one quick circular movement of the calculator.

They're a bit like looking at a paper map versus finding an address in Google maps or somesuch. The latter doesn't give you any context of where you are or how to get there.

Greg
 
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