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, Papplewick Pumping Station Easter Sunday & Monday 1,2 April 2018


. ,Alfold Charity Model Boat Show, 2nd & 3rd June 2018

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.Barrow in Furness MBC, Sub Day and Regatta,Sunday 2nd September 2018.

,The Model Show,Poynton, Stockport (with swimming pool) 15,16th September 2018

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    Simple on/off switcher


    AMS Forum Owner

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    Simple on/off switcher

    Post  Tom(ADMIN) on Sat Mar 09, 2013 4:22 pm

    You can't beat simplicity for ballast tank control (with apologies to David F, JR, Nigel, etc)

    This is the basic wiring diagram using two microswitches for flood/blow of a ballast pump.

    david f
    AMS Treasurer

    Posts : 1940
    Join date : 2010-11-10
    Age : 67
    Location : Cumbria

    Re: Simple on/off switcher

    Post  david f on Mon Mar 11, 2013 8:41 am

    No need to apolgise, Richard - it does the business!

    (I still use microswitches on my proportional piston tank to ask as limit switches. They are very reliablle. Just use a generously rated microswitch if you are switching the motor directly.)


    Posts : 27
    Join date : 2012-02-19
    Age : 54
    Location : King's Lynn Norfolk

    Re: Simple on/off switcher

    Post  Lash151 on Tue Mar 12, 2013 4:06 pm

    Hi David...
    Do you have a wiring diagram of micro switches as travel limiters on a piston tank?
    Thanks Lee
    david f
    AMS Treasurer

    Posts : 1940
    Join date : 2010-11-10
    Age : 67
    Location : Cumbria

    Re: Simple on/off switcher

    Post  david f on Wed Mar 13, 2013 8:28 am

    Sorry I don't have a diagram.
    It is all in Norbert Bruggens book, Model Submarine Technology (A must have,I would say.)

    You put 2 microswitches in with diodes in parallel. (The switch cuts off the motor and the diode allows it to reverse.)


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    Re: Simple on/off switcher

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