Few people have heard of it, yet many consider John Blankenbaker's KENBAK-1 to be the first commercial personal computer.

Koss introduced these headphones over 40 years ago, and they remain affordable favorites to this day.

Dangerous Electronics For Boys

Not much danger here, really.

This cleverly packaged electronics kit comes from the same brilliant daydreamers who brought you The Dangerous Book For Boys. A 32-page full-color manual guides intrepid young researchers through 30 sizzling hands-on experiments.

Build an electromagnet, electric motor, voltaic pile, joy buzzer and even a vibrating bug. For ages 8 and up, contains small parts that could spark a lifelong fascination.

The Dangerous Book for Boys Essential Electronics [via the Maker Shed, but $8 less on Amazon]

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