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Old 02-16-2017, 12:03 PM   #21 (permalink)
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Mike a few comments:

In post #17 you talk about swapping trucks to regain better short hood operation, so I guess that is where you decided to swap them, but nothing changed according to post #20.

So, it would infer that nothing wrong with trucks. Could it be as simple as inadequate power combined with more lamps running forwards than reverse? (less currend drawn in reverse due to fewer lights, thus better running?)

My opinion is that the pack you are using is wrong for G if it tops out at 12v, and the MRC 9500 is rated 30VA, so 2 amps draw at full throttle would be maxing it out pretty much. Also, never trust meters in an inexpensive system until you check them with another meter.

Another item: the pulse power "goes away" around 5 to 6 volts on the output, so if you have heating of the motors, you most likely have a different issue.

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Old 02-16-2017, 06:16 PM   #22 (permalink)
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You misunderstood Greg. The motor over heat issue was on another engine that didnt like PWM power. That was years ago. My point about the running better one way than the other is that the problem lies in the onboard Railsounds electronics. There is only 1 bulb differance between foward and reverse direction. The speed vs voltage needed is way more than just what a bulb would consume. Yes the transformer is underpowered, but it gives a baseline and it will run the engine in either direction for as long as I want and not overheat the transformer. Its only a temporary set up. I think the next step is to eliminate the factory sound, and just tie the lighting circuit to track power(its not constant lighting) and the motors right to the track pickups and see how she runs. Atleast by not needing the PWM to Linear board, I save almost $100 off the cost of the RC stuff. Wish someone else made ready to use Prime Stratolite beacon circuit(not a kit) other than Richmond controls. His stuff is great but a huge waiting list. Mike
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Old 02-16-2017, 07:35 PM   #23 (permalink)
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Ok, I gutted the electronics, found some burnt parts on the lighting board, so I lost the beacon on the lead unit so I removed the stand alone beacon board from the dummy engine for now to restore the roof beacon on the lead unit. In the pic below, we can see the culpret for the high amp draw in foward direction. Mike

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Last edited by Mike Toney; 02-16-2017 at 08:45 PM.
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Old 02-16-2017, 10:37 PM   #24 (permalink)
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Wow, well that sure could be the issue... congrats on digging in and finding it.

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