Dubuque, IA Free Moderated Classifieds Site > OLD ADS FROM PREVIOUS YEARS
> 2005
> February
> Tiny concealable magnetic switches - secret access
Tiny concealable magnetic switches - secret access
Tiny, Easily Hidden: Unique Uses (click here)
(Normally Open - Closes with a Magnet.)
(1) FREE Sample magnet included.*
Need a few SECRET use examples?
Magnetism can penetrate most materials such as glass, plastic, wood, oatmeal cookies,
H2O, non-ferrous metals such as Aluminum or Lead and many grades of Stainless Steel.
*Free Magnet: The included magnet is a typical refrigerator magnet. With it's axis parallel to the switch axis, it will trigger the switch at about 3/4 inch or more. Orientation is important.
Traditional uses: Mount your magnet in a drawer, window, door etc. and mount the switch to the frame. Wire the switch to signal opening and closing of the monitored item. Sorry, we have no data and do not know the current rating, but we recommend keeping it under 1 amp.
Special SECRET Application Ideas:
1) Hide one behind an aluminum or plastic panel for completely invisible control. What could possibly be better than snoops not knowing where the switch is than them never even knowing there is a switch! A magnet concealed in a stuffed toy on top of your computer can allow access when discretely placed over the hidden switch. Move the toy back an inch when you go on break and the snoops will never catch on.
Even more fun, if you can believe it: I built a more advanced Panic Button by adding several dummy switches. But the real kicker was a tiny hole in the back that, with a toothpick, you could reach a small push button that would turn it off....finally. Imagine the pride of my victims who thought they had outsmarted me. Yes, that switch would shut it off ... but it was a trick that triggered a NE555 timer to silence it for 30 seconds. The more persistent of the victims just knew there was some secret switch sequence. I taped a magnet to my arm, under my sleeve. Discretely brushing the box against my arm to shut it off, I'd make some distracting hocus-pocus moves. I stumped everyone. Nobody ever figured it out. Nobody.
3) Hang a magnet on your key chain and hide a magnetic switch behind the tinted glass or a fiberglass fender to arm/disarm your car alarm. [Or, mount it at your pants pocket level, and put a stronger magnet in your pocket and just brush up against the fender.]
4) Glue a magnet to a rotating shaft, wheel, etc. and position the magnetic switch to count rotations.
5) Hold a seance with a magnet taped to your arm underneath your sleeve. Lay your hands on the table and with the help of a hidden switch below, the lights will flicker. ( Caution, they just might flicker anyway.)
6) Stick a magnet to your Model Train Engine and mount a switch between the tracks for a train approach indicator at street crossings.
7) Build a wind direction indicator.
8) Hidden garage door opener. Carry an old speaker magnet in your pocket when working out in the garden.
9) Float a magnet in a fuel tank and make an external level monitor with spaced switches. Keeps the electricity out of the tank.
Get the idea? Got a Magic Trick application? Unlimited possibilities. Use your imagination!
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Untested, but NO JUNK or suspect parts
PCB parts are thru-hole, NO SMD/SMT
Manufacturers may vary from picture
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