Old consumer tech is supposedly obsolete but can also be incredibly rewarding to open up and explore – you might find some intriguing, or even head-scratching engineering decisions inside. KuzyaTech tore down this 1970s-era calculator and found a little bit of both:
Notice the color of the wires and the polarity indicated:
And here’s the calculator’s VFD display shot from the side:
Read more & see pages from the operator’s instruction manual here.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — Makers and car advertising
Wearables — Battery save
Electronics — A way around surface mount snags
Biohacking — Biohacking the Flow State by Boosting Anandamide
No comments yet.
Sorry, the comment form is closed at this time.