ROY@34F Posted February 10, 2013 Share Posted February 10, 2013 HELP! I have just bought my third Hornby second hand controller from a toyfair (returning the first two),with the intention of using it to set a certain voltage for lights,and resetting upwards as I add more lamps.BUT each one I have tried dishes out about 23Volts DC!In the two pins which presumably would plug into the Hornby track. The control knob does'nt have any effect! The controller is the R965 with a separate "plug in" transformer providing the 16v.AC. Am I missing something? I just can't get my head round this--driving me mad--HELP! Roy. Link to post Share on other sites More sharing options...
smokebox Posted February 10, 2013 Share Posted February 10, 2013 Presumably you are measuring the voltage with no load connected. You should find that the voltage drops when a load is connected. Link to post Share on other sites More sharing options...
Dublodad Posted February 10, 2013 Share Posted February 10, 2013 This must be a Variable Resistance controller, the output voltage depends on the load being fed. A low load resistance is needed to give a low output voltage, lights are a high resistance load. This is all the fault of Mr Ohm and his lae Terry Link to post Share on other sites More sharing options...
RMweb Premium kevinlms Posted February 11, 2013 RMweb Premium Share Posted February 11, 2013 I'd suggest you forget about using the Hornby one & buy something like this. http://www.maplin.co.uk/high-power-multi-voltage-desktop-power-supply-48517 Its both regulated & is switchable for different output voltages. Link to post Share on other sites More sharing options...
ROY@34F Posted February 11, 2013 Author Share Posted February 11, 2013 Many thanks chaps.I will try it again,but am inclined to drop in at Maplins next Sunday and have a chat. Thanks again for the advice. Regards,Roy. Link to post Share on other sites More sharing options...
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