Sears C1 Calculator from 1972: Testing And A Look Inside! - 3 Old Tech Dudes

Timmy has a new toy in the old tech collection, so of course we have to show it to you guys! This Sears C1 calculator is one of the first electronic calculators sold by Sears, and we look it over and, being 3OTD, open it up to have a look inside as well!
Link to the 1973 sears catalog page: christmas.muse...
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[@sambaker3233]

Interesting, I'm watching from New Zealand. When I was a child my dad had a similar looking calculator. It was a brand called 'Spicer'. It had a orange vaccum fluorescent display and the same keypad keys as your one! It was a 230v version though.

[@nathanlowery5184]

That has to be one of the first LCD display calculators. Fun... :)

[@Atomshamradio]

Iam surprised it dont have mini nixie tubes

[@AndyMorrison]

What happens if you key 800813? LOL.