I have three remaining PS2 5 volt board engines - two diesels and one subway (my beloved R36 Worlds fair). All of my other PS2 5 volt trains have died and were upgraded to PS2 3 volts or PS3, a number with flaking speakers and others for no apparent reason. However, these three just keep on going, one is 20 years old and the other two are from 2002/2003. I have no ability to change capacitors or anything else on the board, I just make sure to run them at under 16 volts (to not over tax them). Is there anything else you guys would do or should i just have my dealer upgrade them now before the inevitable failure? Or is that true - is it inevitable that these will fail before the ps2 3 volt boards?
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