Model Train Diesel and Horn Circuit


Rating: 0.00 / 5 
RC Model Toy Circuits / Other Circuits
The main power supply to the system must be a regulated 12 volts DC with a minimum input from the train control AC or DC power supply of 13.5 VAC connected to pos 3 and 4 of the rectifier bridge . The ground bus of the regulated 12 volts supply must be connected to the system ground , The independent speed reference voltage is taken directly from the train speed control module or can be taken by connecting directly from the tracks to positions 5 and 6 of the rectifier bridge .The output of this bridge will always be a positive speed voltage signal whichever direction the train is going.
Model Train Diesel and Horn Circuit - schematic

The op-amp used is a FET input type ( TL071) for minimum offset voltage without having to use a zero offset voltage circuit . The offset voltage for the 741 was found to be much too high at 2.3v while the TL071 average offset of 1.15 volts was ideal to ma


  • 10TV
    10TV A new study by The American Speech-Language-Hearing Association finds that teens and parents average five hours day on personal devices outside of school and work. ... Not learning how to communicate as a teen could short their future
     4 May 2016
  • Phys.Org
    Phys.Org The biofilm allows memanes to limit their own thickness via a quorum-sensing , and ultimately to reduce the occurrence of biofouling in memane-based water treatment systems by releasing chemicals that repel undesirable bacteria. "We
     4 May 2016
  • WTOP
    WTOP The mystery deepened in the hours before Batty's trial in Baltimore City Court in September 2014. As Meckler shifted through case files, she discovered something she'd never noticed in her 25 years on the job: an after-action police
     4 May 2016
  • WWD
    Huffington Post ... An Age of ,” the natural assumption of attendees was that the echo-ey galleries of the museum's Costume Institute would be filled with gleaming gizmos, gadgets, LED lights and Siri-esqe robotics — the latest wo
     4 May 2016
  • CBS 8 San Diego
    CBS 8 San Diego and fairy tales" with fashion, it's like the next big thing, we're using all kinds of neo-pixels, little flora boards, fiber optics and components," said Susan Lazear, Fashion Professor at San Diego Mesa College. The cla
     4 May 2016
  • Provide Control of Light PatternsFuture applications of this may include all-optical reconfigurable routers, ultrafast optical modulators and switches for optical networks and microwave photonic , as well as wafer-scale op
     4 May 2016
  • The Verge
    But while something like Tobii's eye-tracking system can be used to play Assassin's Creed, there's a secondary benefit to hands-free in the field of assistive . GlassOuse (i.e. "Glasses + Mouse") is made specifically to help those
     3 May 2016
  • Government Technology
    Government Technology times, Kiesow removed the anklet when she was around drug users because it made them skittish. Three of the tracking units still are missing. ... “It was an eye opener when we saw the number of units unreturned,&
     3 May 2016
  • TIME
    TIME , such as the iPod, propelled an existing idea into the mainstream. ... You could argue the Minimoog did far more for music , or that the Fairlight was cooler, but visit average U.S. households from the 1980s forward and you're most like
     3 May 2016


Leave Comment

characters left: