I have about a dozen large Railking skyscrapers (5 to 11 stories each) that I kit-bashed and powered by one handle of a Z-4000 transformer. Around 6-8 volts it's drawing 8-9 amps and lights are on but a little dim. Buildings need over 10 volts to brighten up, but when I increase voltage above 8 volts the lights pulse up and down every few seconds. I wasn't using the other handle of the transformer so there was no other load. Anyone know what's going on? I can't have the buildings partly lit up and pulsing. I am running the lights through two SPST toggle switches via two terminal strips - maybe they can't handle the amps, not sure what they're rated at, they're from Radio Shack.
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