General > General Technical Chat

Most "wrong" fun in the lab/shop/biz/bench? Keep it clean!

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mkiijam:
TV repair shop: We had a game we called "One Twenty to the Board." (USA, and are mains power is typically 120V) We would take junk PCB's and attach a stripped AC power cable to two random spots and plug it in. Sometimes nothing, sometimes MASSIVE showers of sparks. More than a few times we would blow the 20amp breaker which was actually next door!

We found that the large 40-ish pin chips were the best... they'd look like Roman Candles going off. Tons of fun.

jonpaul:
Year circa 1960
At  Radio Row   lower Manhattan NYC
TAB surplus, 111 Liberty St. Old warehouse, with war surplus store and power supply mfg


My first Summer job: I was just  the  kid,  a go-fer.
I learned a LOT that Summer....

When  closing up, with breakers OFF  a tech placed 1 W 10 Ohm carbon comp resistors inserted carefully  into the mains outlets.....various places like behind  sales counters and mamagement offices.....

Next morning the boss (who usually opened up) got a BIG SURPRISE as breakers were turned ON.

BANG! SMOKE! FLAME! at each rigged outlet.....

Jon

tom66:
I have a 300V power supply, sometimes I would put 1k ~ 22k ohm 1/4W resistors across it and watch the fireworks.

Dan123456:
When I was an apprentice mechanic, one of the guys quietly wired the cars ignition coil to the drivers seat and asked me to drive it it… sure enough, I turn the key and feel like I’ve been shot in the butt  :-DD

I still drove the bloody thing into the shop with it zapping me the whole time though  :-DD

You probably couldn’t get away with that these days but was all in good fun  :) Good times  :)

nali:
Early Weller TCP soldering stations had a transformer base on the front with 24V AC terminal posts to connect the iron. A small bead tantalum discreetly wired across the terminals never disappointed :)

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