 
          N scale sound - 1
        
        
          
            W
          
        
        
          hen digital sound decoders appeared on the market
        
        
          several years ago, I was skeptical. Given the size of
        
        
          N-scale models, I thought that sound installations
        
        
          could never reproduce the sonic impact of a Berkshire steam
        
        
          loco starting a train, or the deep vibration of an EMD 567C
        
        
          V-16 prime mover in a GP9. But then I decided to try it, first in
        
        
          the tender of a Walthers/LifeLike N-scale Berkshire.
        
        
          What I realized is that while
        
        
          my intuition about the “size”
        
        
          of the sound produced was
        
        
        
        
        
          Adding sound
        
        
          
            – John D. Colombo
          
        
        
          
            Photos by the author
          
        
        
          correct, the sound appro-
        
        
          priately matched the size
        
        
          of the model. No, it did
        
        
          not provide the impact of
        
        
          the real thing, but I wasn’t
        
        
          standing next to a 250-ton
        
        
          fire-breather, either. I was
        
        
          standing next to a 6” long
        
        
          model. To have the full
        
        
          impact of a real Berkshire
        
        
          from two yards away would
        
        
          have been out of place.
        
        
          More importantly, hearing
        
        
          the sounds of the chuffs,
        
        
          bell and whistle added a
        
        
          new dimension of realism
        
        
          to operations. The chuffs
        
        
          made me acutely aware of
        
        
          the speed at which I was running my locomotives – no more
        
        
          100-mph switching moves! The bell and whistle provided inter-
        
        
          est at grade crossings, entering yards, starting and stopping
        
        
          movements, and so forth.
        
        
          While the size of N scale steam engine tenders made sound
        
        
          installations relatively easy, N scale diesels were another story.
        
        
          There just wasn’t enough room to accommodate even the
        
        
          smallest speakers I had seen for sale by on-line DCC special-
        
        
          ists, and the sound decoders also were just too big to fit in an
        
        
          N scale diesel. But about two years ago, I started wondering
        
        
          whether the technology existed to do sound installations in
        
        
          N-scale diesels.
        
        
          Because most N-scale diesel shells are only about 10-11 mm
        
        
          wide inside, I would have to find a VERY small speaker with
        
        
          Moving sound to
        
        
          a smaller scale...
        
        
          to an N scale diesel
        
        
        
        
          MRH-Dec 2014