I need help wiring 153 block signal. My signal had the resistor that I removed. After removing resistor both the red and green lights light up and stay lit. I cannot get them alternate off and on.
Or look up my article “The Kalmbach block-signal circuit” on page 54 of the November, 2020, CTT for Al Kalmbach’s and my simple ways to do it without a contactor or a relay.
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