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- เผยแพร่เมื่อ 24 ต.ค. 2018
- Assembly Lines video podcast #79
I interview Harry Edwards, former repair technician for Friden Electro-Mechanical Calculators.
Photo credits:
Rocky Flats Dow Chemical sign, Beyond the Buildings, Patricia Buffer, www.lm.doe.gov/WorkArea/linki...
Rocky Flats Building 771 incinerator, Library of Congress
Friden factory, www.johnwolff.id.au/calculator...
Great Western Sugar factory, Ovid, Colorado, from longmontian.blogspot.com/2014/...
Victor calculator, www.johnwolff.id.au/calculator...
Friden EC132, www.hpmuseum.org/ec132.htm
Climax Molybdenum mine, www.vaildaily.com/news/climax...
Climax skiing, www.coloradoskihistory.com/los...
All other photos, courtesy Harry Edwards and Chris Torrence
If you'd like to see more videos like this, visit my Patreon:
/ christorrence
Beach Buggy Ride by SIRPRICE / sirpricedj
Creative Commons - Attribution 3.0 Unported- CC BY 3.0
creativecommons.org/licenses/...
Music promoted by Audio Library • Beach Buggy Ride - Ele...
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I have been a Friden calculator technician since 1960. Here in Brazil. I worked hard at companies and stopped when the electronic calculators came. I loved to fix these machines
Wow, that's really cool. You must have some interesting stories!
Living history, love hearing old timers talk about their craft. I know it's electrical but it's like providing continuity going back to Babbage. Great for those of us who have seen plenty of these types of calculators but are too young to have used them.
Glad you liked it! I had only seen the Friden in movies like Hidden Figures, so it was fun to try one in real life. If you get to Boulder be sure to stop by the Media Archaeology Lab and play with the calculator!
I'll testify they're well built. I picked up a Model D in the early 1970's, used, from a business supply company. I was in my early teens when I got it. I've always had a fascination with calculating machines and computers. Anyway, I hung onto it all these years. I pulled it out eight years ago to show to my buddies at work and made a little TH-cam video. It still worked perfectly then.
Chachunk! Now THAT'S number crunching.
Very cool! Yep, they're good machines. Kids get a big kick out of playing with it in the Media Lab.
That's good to hear. If you analyze how these calculators work (mine didn't come with an instruction manual) it really becomes apparent how multiplication and division are simply repetitive addition and subtraction. Math was not a strong point for me, but the Friden helped me understand a few things.
I have two of these. When I first got them, both of them worked. Unfortunately I stored them in a barn and a mouse built a nest in one and chewed through the wires. That one is useful for parts only. The other one looks like it's in pretty good shape and someday I might attempt a repair. They are really fun when they work.
Very cool! Ours isn't working right now because the gear wore out again. But you're right, they're fun when working!
@@CT6502 Good thing you have spares.
A lost opportunity for some analog 80085!
Thanks for the fascinating interview. Check out CuriousMarc's channel, he merticulously repairs vintage hardware including mechanical calculators and teletypes. In one episode he finds out what happens when you divide by zero on a mechanical calculator :)
Thanks Riccardo! Thanks for the tip on CuriousMarc's channel. I'd love to try that divide by zero, but unfortunately the division key isn't working on our Friden. I've been thinking about trying to fix it, but just need to work up the courage to take it apart...