5 Second Ramp Generator for Locomotive Sound Card Demonstration

  The circuit on this page is designed to produce a timed throttle output for demonstrating on board sound systems in a large scale locomotive.

  When a push button is activated the output will rise from 0 to 15 volts in 5 seconds. The voltage will then hold for 5 seconds. The voltage will then return to 0 in about 10 seconds.



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Please Read Before Using These Circuit Ideas

  The explanations for the circuits on these pages cannot hope to cover every situation on every layout. For this reason be prepared to do some experimenting to get the results you want. This is especially true of circuits such as the "Across Track Infrared Detection" circuits and any other circuit that relies on other than direct electronic inputs, such as switches.

  If you use any of these circuit ideas, ask your parts supplier for a copy of the manufacturers data sheets for any components that you have not used before. These sheets contain a wealth of data and circuit design information that no electronic or print article could approach and will save time and perhaps damage to the components themselves. These data sheets can often be found on the web site of the device manufacturers.

  Although the circuits are functional the pages are not meant to be full descriptions of each circuit but rather as guides for adapting them for use by others. If you have any questions or comments please send them to the email address on the Circuit Index page.

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15 February, 2009