Tag: 1970’s

Aug 09 2017

Repairing the Melcor 390 Calculator Part 1 – An Exercise In Patience

So, after many many delays, I got the Melcor 390 calculator fixed. Oh, it was an absolute joy to get done soldering the capacitor in and finally seeing the LED’s fire up with “EEE1” and other garbage data, as this little calculator does when it’s first powered up. If you don’t know what I’m talking …

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Jul 28 2017

Update On The Melcor 390 Calculator

So, you may recall a few days ago in my thrifting adventures I snagged an old 70’s calculator that, after working for a few minutes failed in a flurry of smoke and heat. If not, the previous article will be shared below. http://www.xadara.com/i-got-a-vintage-70s-calculator-and-then-it-blew-up/ Well, I mentioned I would ask on the eevblog forums about what …

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Permanent link to this article: http://www.xadara.com/update-on-the-melcor-390-calculator/

Jul 25 2017

I Got A Vintage 70’s Calculator, And Then It Blew Up!

Not the typical article here on Xadara, but these types of posts will become more common as time passes. I love random gadgets of yesteryear – be it old adding machines and typewriters, to slightly more modern things like computers and other consumer devices of the 70’s, 80’s and 90’s, there is a charm to …

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Permanent link to this article: http://www.xadara.com/i-got-a-vintage-70s-calculator-and-then-it-blew-up/