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Category: Electronics

Vintage Microcomputer Clone – Sinclair ZX80

February 6, 2019 by Mark Baldridge - Leave a Comment

While rummaging through a box of electronic scraps and parts, I found components that were purchased nearly 10 years ago for building a Sinclair ZX80 clone. I was only 15 years old at the time, and though ambition was high, electronics experience was not, and I could never get the first piece of the circuit […]

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Introducing Amateur Radio

October 12, 2017October 13, 2017 by Mark Baldridge - Leave a Comment

There was once a time when man could not communicate without travel. The first development in this area was the telegraph which allowed messages to be sent over miles of wire. Starting in the late 19th century however, a few brilliant people such as Marconi discovered that electrical signals could travel through the air. The […]

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A $100 School Laptop

October 10, 2013October 7, 2017 by Mark Baldridge - Leave a Comment

When the fact became quite evident that I needed a laptop for school, I became determined to get the best bang for my buck. And I’m quite sure I did. After surfing eBay for some time, I realized that old business laptops were quite reasonably priced, and were great no-nonsense machines. I looked at mostly DELL and Lenovo because […]

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