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Started by mudhen, September 14, 2008, 06:31:01 PM
Quote from: StanAmes on September 15, 2008, 03:07:55 PMMy k27s optical chuff produces a slightly out of time chuff which is protoitypical for an out of square locomotive...
Quote from: StanAmes on September 15, 2008, 03:07:55 PMWhen a locomotive first comes out of the shop the cylinders are in square and produce a chuff that is in time. As the locomotive is used D valve adjustment will move slightly and become out of square. When this happens the chuff becomes slightly out of time.
Quote from: JerryB on September 17, 2008, 05:13:53 AMsnipI don't (yet) have a K-27, so can't test this. My Centennial 2-6-0 with mechanical cam switches and a battery powered sound card makes a chuff on first motion. Is the K-27 the same or is the sound startup delayed due to using optical sensors?An inquiring mind wants to know.Happy RRing,Jerry
Quote from: JerryB on September 17, 2008, 05:13:53 AMI thought I remembered reading that the optical chuff actuators don't start producing a trigger signal until the locomotive power input voltage was high enough to power the optical source and detectors.