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| Most "wrong" fun in the lab/shop/biz/bench? Keep it clean! |
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| Bud:
Putting your hands close to antenna matching circuit of a few kilowatt transmitter hurts, even if tramsmission frequency is 3.5MHz. |
| CJay:
High value resistor wired from mains live to a pushbutton which connected it to earth. High enough to not be dangerous but low enough to cause a nuisance trip whenever the button was pushed. Drove a colleague insane for *months* Same workshop, different colleague, they went on holiday so we got some really strong double sided adhesive tape and stuck down *everything* on his workbench. Different workshop, in the PSU repair benches we had some basic high wattage resistor dummy loads in fan cooled metal cases that were used for testing, we did all sorts, 'Soundbomb' sirens hidden inside and wired across 12V load, a random chirping thing we found that sounded just like a PSU 'hiccuping', a 555 timer connected to a Piezo, free running high enough to sound like a PSU squeal The worst/best, we were in an industrial unit which had 12ft high brick walls then a 'tin' roof another 10ft or more above. Ideal position for a theatrical flash/smoke pot. |
| mkiijam:
Another fun one we did to each other, was to walk behind a tech who had is head stick in a TV and clap! You could make the sharp report sound just like a cap discharging which would make them jerk back in shock. No matter how we would prep for the next time, we'd always get fooled... it was like reflex. |
| hans:
In my old school you could tell you were on the EE floor of the building. All students would check corded power strips for hidden caps before flicking the switch. |
| Gyro:
--- Quote from: nali on November 09, 2023, 01:05:09 pm ---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 :) --- End quote --- I remember doing the same to a colleague using a low value resistor inside a piece of Hellerman sleeving. He was not impressed by the lazy coil of smoke and pungent stink when he turned his bench on! :D |
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