Reply to "Design of a $10-20 DCS-TIU Port Tester Tool?"

Susan DeatsOGR Forum Member SUPPORTING MEMBER

gunrunnerjohn posted:
Perhaps, I tested a known good TIU (checked with my 'scope), and the variable channels (in fixed mode) tested just the same as the fixed channels.
Here's a test of the board using the Lionel 1033 to power the TIU, tester is connected to Variable #1 (in fixed voltage mode) to illustrate the variable channels work the same as the fixed channels.

During your tests, with your tester connected to the TIU variable output, what was your Remote "talking" to when you activated the whistle and bell?

10/15/1812:07 PM

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