I recently bought a Bachmann On30 Forney at a swapmeet. It has factory fitted DCC sound but is rather a stuttery runner with the sound frequently cutting out. I have got the impression that the trailing truck picks up current as well as the drivers. However I'm not sure how the current gets from the wheels to the 2 small terminals from which are a couple of flimsy looking wires leading into the DCC circuitry because the bogie frame seems to be made of plastic. I feel that if I can get the current from the bogie then the running will be improved.
Does anyone have any ideas to improve the running of this loco?
Has anyone managed to fit a Stay-alive to the factory circuitry or is it a matter of a complete replacement of the chip with another plus a compatible Stay-Alive?
Many thanks
Dave Ellis