TerrySVR Posted September 1, 2019 Share Posted September 1, 2019 Can anyone out there explain, in plain English please, how I can put route indicationon an existing control panel by way of lights? Hope that makes sense. Terry Link to post Share on other sites More sharing options...
Miss Prism Posted September 1, 2019 Share Posted September 1, 2019 3 Link to post Share on other sites More sharing options...
TerrySVR Posted September 2, 2019 Author Share Posted September 2, 2019 Thanks Link to post Share on other sites More sharing options...
Sol Posted September 25, 2019 Share Posted September 25, 2019 Actually, you only need one resistor in either power feed wire. 2 Link to post Share on other sites More sharing options...
Miss Prism Posted September 25, 2019 Share Posted September 25, 2019 Agreed. One resistor will be needed for each 'switched pair', but a layout will have many switched pairs, so my diagram (of the principle) is conservative. I understand some purists favour a resistor in each leg. (And resistors are negligible cost.) Link to post Share on other sites More sharing options...
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