decoders

In general, my understanding is that the light function outputs on most decoders is around 12 volts, but do most decoders have the ability to dim the lighting to taste, or make a beacon dim or flash? I'm trying to adjust the intensity of my LEDs on my test bench using a 3V battery with various...

I have recently acquired a Marklin DB BR 185 loco which came with a dcc decoder installed. It identified itself as Trix sound BB12000, however I have been unable to locate any instructions for a decoder with this identifier in either the Trix or Marklin websites. It appears to be original...