Subject:
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Reed Switches was Re: Has Babylon Fallen?
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Newsgroups:
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lugnet.trains
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Date:
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Mon, 27 Nov 2006 18:17:25 GMT
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Viewed:
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4461 times
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In lugnet.trains, Chris Phillips wrote:
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In lugnet.trains, Elroy Davis wrote:
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In lugnet.trains, Christopher Masi wrote:
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You know, it was always fun talking with you at the events, but I have
got to admit, I really miss those crossing gates that you have. Those
things are AWESOME.
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Oh yeah! I remember seeing those at a show before I joined NELUG. I went
out that day and bought some reed switches. The next day I spent a few
hours burning my fingers and melting the things together. I never did get
them to work properly.
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The reed switch
sensors are a bit tricky. There’s not much room to work with, so you’ve
gotta use pretty small switches.
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Miniatronics makes nice
reed switches that seems to work well.
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And they are very easy to break, basically
being tiny glass tubes. (About half of my sensors no longer work.)
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Yes, you have to grab the lead in wire up close to the glass envelope with a
pair of needle nose pliers, and, while holding the pliers you bend the wire.
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For some
reason, you need to lay them lengthwise along the track to get the best
response from the train couplings, which doesn’t help the geometry any,
either. And don’t make the mistake of hooking one up to a motor output or
you’ll weld the contacts closed in a real hurry.
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Those are two very good tips!
Lawrence
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Message has 1 Reply:
 | | Re: Reed Switches was Re: Has Babylon Fallen?
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| (...) Good link! (...) I don't bend the leads on the reed switches at all. I use very small reeds, maybe 1 cm in length, solder directly to the straight leads, and then carefully trim them shorter. (Trimming is optional.) The switch is then (...) (18 years ago, 27-Nov-06, to lugnet.trains, FTX)
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Message is in Reply To:
| | Re: Has Babylon Fallen?
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| (...) The (URL) reed switch sensors> are a bit tricky. There's not much room to work with, so you've gotta use pretty small switches. And they are very easy to break, basically being tiny glass tubes. (About half of my sensors no longer work.) For (...) (18 years ago, 23-Nov-06, to lugnet.trains, FTX)
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