Hi,
Our club recently replaced our ZWs & KWs with four new Lionel GW-180s. They work great but I did notice the presence of a low voltage DC current out of each (btwn .05V to .20 V) that varies a little based on throttle setting. Generally not a problem until we try to run some of the older Williams units...they squawk randomly like mad geese! My assumption is that the older Williams horn boards are looking for any DC signal and are reacting to this low volt DC output from the GW-180. Seems that anything over about .15 v will set them off. Please correct and enlighten me if I'm wrong about this!
If this is correct; does anyone know why Lionel did not filter this residual DC out? Does anyone know how we could add a low voltage filter to the Williams horn circuit that would still allow a "real" horn signal to reach it?
As always, thanks for your insights!
Mike