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by Stratoscope 3116 days ago
When I was in kindergarten in the late '50s, I pranked my class with electricity. I had a big fat electrolytic capacitor that I charged up before bringing it to school, and a screwdriver.

I don't remember the exact voltage I charged the cap up to, but it was definitely only a few volts.

So for show and tell, I explained how electricity worked, and then I grabbed one of the cap's terminals in each hand and started twitching and shaking like I was being electrocuted! Finally I somehow managed to break free, took a deep breath, and told my classmates "don't be as foolish as me."

To protect them from the danger, I then took the screwdriver blade and shorted it across the capacitor's terminals, with a big spark and a loud bang! Clearly, this cap had enough power to kill you.

I told my classmates, "Now it's safe. I discharged it. You can touch it now."

And they did. Nobody was harmed.

School was great back in those days. When I got to third grade and I wanted to etch a printed circuit board, I told my teacher I needed a tank of nitric acid, and she got it for me! But that is a story for another day.

1 comments

This is a great story.

How were you able to learn about electricity at such a young age?

I grew up on all-in-one kits from Radio Shack and was heavily influenced by my grandfather (lots of HeathKit builds, ham radio, and model railroads).

Oh, I loved those Radio Shack all-in-one kits too - the spring connectors made it so easy to wire stuff up. Also did a bunch of Heathkits a few years later - color TV for the family, ham radio gear for myself, etc.

I was trying to remember my first experience with electricity and electronics, and it finally came back to me. Whenever our TV or radio went on the fritz (which happened quite regularly), I got to pull out all the tubes, and my dad would take me to the local convenience store where they had a tube tester. I would put each tube in the tester and learn what to set the dials to and what to look for on the meters and figure out which tube was bad. It was a great adventure!

73 de Mike WJ6V