"This page is the result of a lot of effort over the past couple years to develop a quality, inexpensive device to test shutters on the classic film cameras that I have been using..." .. Mike Mikes Optical Timer Counter Once built, this counter… more »
Category: "Railroad"
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Posted by dapj20 on Nov 20, 2015 in Railroad
"Electronic circuits that are mostly for model railroads. Shown are designs that were developed to solve certain problems or achieve a desired control function. There are throttle, train detection, animation, control and general purpose circuits on this… more »