50. MRH14-04-Apr2014 - page 53

maybeas simpleas an LEDor two inaplastichousing, like the
inexpensive LED-212 fromAll Electronics, as in (3).Manyof the
plastic LEDholders canhave the LEDs removed, soadjusting
what color iswhere isnot abigdeal.
Manycompaniesmakedwarf signals, in (4, nextpage). These
areavailable forabout$10. If youchoose tomakeyourown, see
/dwarf-signal.html
for ideas.
Live frogs andDCC
Howabout anarrangementwhere the turnoutwill tell you
whichway it is actually set?You cando it if youuseDCCand
live frog turnouts, suchas thePecoElectrofrog. The signal is
built out of two LEDs anda resistor.
This schemewillworkwith just about any styleLEDyouhave
available: twoLEDsora singlebi-color LEDwith three leads,
either commoncathodeor commonanode. TheLEDpack-
age shown in (3)wouldworknicely. If youareusing twoLEDs,
1...,43,44,45,46,47,48,49,50,51,52 54,55,56,57,58,59,60,61,62,63,...301
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