Peter's Model Railroading | My Library | Railroad Model Craftsman 1994-09
Articles Listing
Building a Model Railroad Speedometer
Magazine:
Railroad Model Craftsman 1994-09
Page:
69
Author:
Max Magliaro
Category:
Electronics
The author describes the workings and the construction of the electronic circuit for measuring the speed of an engine. It works by placing a magnet in a car in the train and two reed switches hidden in the scenery to measure the speed.