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OK here's the problem; I have a small layout, 4o' mainline buss 12g wire. Zephyr feed connected at the 30' point(30' of buss one direction & 10' the other). 20g feeds every 6'. soldered rail joints. All this was worked fine with a MRC Tech2 2400 20VDC output connected to the layout with 4' of 20g speaker wire and alligator clips. I could run an Athearn F7A with 8 passenger cars around the layout @ 65% power, up the hill @ 75% &down @ 55%. Now with a DH163 installed in the same F7A , pulling the same train, it cant make it up the hill at 100%. Tests that I've made so far; Disconnected Zephyr and connected the Tech2 at the same point, no decoder F7 ran to fast all around layout, decoder F7 running on DC half the speed. Connected Zephyr directly to rails; no speed change. read CV 05, max volts, it came back 000which I understand is default max. reset to 250(255 is max) and no noticeable change. I will try Tech support later today, don't know if they're in on Saturdays if not I'll call Monday. Thanks for listening. Pat
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