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rowdymagi5 Inner circle Virginia 3613 Posts |
Where can one find these?
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mkiger Loyal user 228 Posts |
Radio Shack has them, also All Electronics online.
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Mystification Special user 571 Posts |
I asked them at my Radio Shack, and they just gave me a blank stare!
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tbaer Inner circle Pennsylvania 2003 Posts |
Just Google "magnetic reed switch", and you will find a lot of websites that carry them. I got mine from wondermagnet.com awhile back, but I no longer see them listed.
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davidj40 Regular user 101 Posts |
I have bought several different sizes from allelectronics.com I just recently purchased some tiny ones, about 1/2" in length. They are not as stiff as the larger ones, but they can fit in some tight places.
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rhiro Regular user Southern California 182 Posts |
Radio Shack used to have these for their home alarm systems. I don't think they carry these anymore. Indeed, their offerings for the DIY types has greatly diminished over the years.
As others have mentioned, I'd check surplus electronic stores like All Electronics for cheap reed switches. Here's one: http://www.allelectronics.com/cgi-bin/it......O._.html For wider selections, but likely pricier options, you can do a search on "reed switch" at any major electronic components supplier, like Digikey (www.digikey.com) or Mouser (www.mouser.com) In a pinch, you might check out a local place that sells alarm systems and ask for a door/window sensor. These often come in a plastic case that you can crack off to get at the smaller reed switch inside. You probably know this, but be sure to pay attention to whether the reed switch is NO (normally open) or NC (normally closed). Some come with 3 leads and can be wired for both. All depends on your application. Ross Hironaka |
Craig Ousterling Special user 585 Posts |
Really super-sensitive reed switches can be found at hobby shops that carry slot cars. They're used for counting laps.
~Craig |
ssucahyo Inner circle 1954 Posts |
Hi,
In my country, that one is easily found in any electronic parts supply store. Cheers, CC |
DonEduardo New user 60 Posts |
The dollar stores sell window alarms with two pieces, one the magnet and the other the sensor with an audible alarm. Reed switch inside the sensor piece can be taken out or hook up the speaker wires to something else to trigger that instead.
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Anverdi-museum Inner circle 1193 Posts |
Radio Shack do not carry these anymore, they did years ago. Ebay is your best bet, if you purchase these from a local electronics parts store in your area you will pay way too high a price. Ebay all the way.
C. Caputo |
Peter McMillan Elite user St. George, Utah 497 Posts |
EBay for me also. Just type in REED SWITCH and take your pick. I've bought several types and styles and they have all worked al long as I get the circuit wiring correct. Very handy gizmos.
Pete
Spiritus Dictum Artifacts ~ Tools of the Craft for Serious Workers http://petemcmillan.wixsite.com/sd-artifacts/artifacts
~ www.SantaPeteUtah.com |
remote guy Special user Maryland 534 Posts |
If you're in a pinch and need a reed switch Radio Shack has something that will work. It is a reed relay, which is actually a reed switch with
magnet wire around it. When voltage is applied, a magnetic field is created and closes the reed switch. This switch will also close if you place a magnet near it. http://www.radioshack.com/search/index.j......lay&sr=1 Nick |
AGMagic Special user Cailf. 775 Posts |
Digikey and Mouser carry them.
Tim Silver - http://www.facebook.com/pages/Magic-Woodshop/122578214436546
I know you believe you understand what you think I said, but I am not sure you realize that what you heard is not what I meant. Visualize Whirled Peas! |
TheRaven Special user 597 Posts |
You can buy large quantities cheaply on ebay. The inexpensive ones typically come from china so if you are in a rush that won't work.
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BanzaiMagic Inner circle 1339 Posts |
That "won't work" because they are made in China or "won't work" because it will take a while to ship from China. I ask because I have purchased several items (toys) from Hong Kong and the shipping was very fast (a week to a week and a half).
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TheRaven Special user 597 Posts |
I haven't had a problem with quality. Delivery can take a week or two.
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wa-na-be Veteran user 355 Posts |
Check these out...
http://www.digikey.com/Web%20Export/Supp......rected=1 |
chill Veteran user colorado, usa 385 Posts |
Might want to look into hall effect sensors as an option.
bob
I spent most of my money on magic and women, the rest i just wasted
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DonEduardo New user 60 Posts |
The OP didn't specify why he wanted this. Chill, are you suggesting that this can be used as a magnetic sensor? I've been thinking about this ever since I saw that some electronic magnetic sensors cost $300 at the magic shops. I've already got plenty of microcontrollers around the house and if a hall effect sensor can detect a magnet in a coin, ring, etc I can easily build such a device for next to nothing. I have seen some magnetic sensor boards for less than $10 so maybe I'll just get one of those and not mess around with trying to get a hall effect sensor to do what I want.
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