开云体育

The circuit in the ad is only the rectifier and filter capacitor. There is no regulator, so the output depends on the input. I don't know why it's described as 6,12, or 24 V in and 12V out.. Clearly it isn't so. But, it should work fine on DCC, which has pretty consistent voltage to the track. You could always add a regulator circuit as Dan did in his homemade example. Really, on DCC, the capacitor could be much smaller, perhaps 33 or 47 or 100 uF instead of 1,000 uF.?

The bigger cap draws more of a surge for longer on power up, which might be a factor with multiple lighted cars plus multiple sound equipped locos. I still like the idea of a small resistance in the track side of the circuit to limit that surge current when powering up. The big cap will keep the lights from flickering if you have track power pickup issues.