i checkd voltage today. AT 87 percent it is putting out 13-14 volts. At 85 the voltage is 1 volt. sound like a new powerpack is in order
I used a railpower 1370 as the Tortoise supply on my last layout. I kept it at about 1/2 throttle.
One day the Tortoises all started moving much faster. I checked the power pack, and it failed similar to yours. It was either off or full voltage. The voltage would go from zero to full at about 3/4 throttle.
I replaced it with a used MRC Tech II 1500, and all was fine.
-Kevin
Living the dream.
good advice.......ill check it out today
That sort of tells me there's something wrong with the power pack. You shouldn't have to go all the way to 80% throttle to get a loco moving, and then have it take off at one speed. That 3 different locos have the problem say it isn't a loco issue.
Try touching a known good 9V battery to the track - the locos should move pretty fast. Or of you have a voltmeter, the cheap Harbor Freight one will do, measure the voltage on the rails with one of the locos on, and turn up the throttle. It shoudl smoothly increase, but I suspect you will see little if anything until you hit the 80% point, then you will get about what it should be at that postion - somewhere around 10 volts or so.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
im working inN scale......using a railpower 1370 power pack (MRC). I have two Bachmann s-4 locos. either of them will not move til abot 80 percent throttle. The they opeate a t ne speed only.....power is either of or on. no control.I aaasume he low opeaing speed isdeliberate as these are switch engines. I alsohave an ATLAS rs3. it likewise does not move til about 80 percent throttle the takes off a great speed . again no control.AM i using the wrong power pack?