two track AC block signal control questions

Discussion in 'G / O / S Scale Model Trains' started by TR-Flyer, Jan 30, 2004.

  1. TR-Flyer

    TR-Flyer Member

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    Hi:
    Don't think i've asked this question here before so thought i should. Do y'all know of any inexpensive way to control a block signal, like the flyer or lionel ones, without resorting to an IR detector, a current detector or some other piece of $30 electronics?

    Also, do any of you know how the K-Line/Lionel block signal bridge works?

    Thanks,
    Ted
  2. Daniel Lang

    Daniel Lang New Member

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    Hello Ted,

    Atlas makes a 2-rail block current sensor (#7935) that costs only $15.95. See http://www.atlaso.com/osignal.htm and http://www.atlaso.com/7930manual2rail.pdf for more details.

    Another way is to use a pressure activated sensor that senses the weight of the train but I do not consider this very reliable.

    A third way is to embed reed switches underneath the track and mount a magnet under the engine and each car. You would need some sort of time delay (several seconds) to keep the output steady while the train is crossing.

    Daniel Lang
  3. jon-monon

    jon-monon Active Member

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    :wave: Welcome to the-gauge, Daniel! :wave:
  4. TR-Flyer

    TR-Flyer Member

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    Hi Daniel:

    First, I'll add my welcome to Jon's. Seconc, thanks for pointing the atlas detector out to me.I'll sit down and take a good hard look at it to see how the pricing comes out once all the other goodies are in place. I had not seen this product before.

    Regards,
    Ted