Build A Simple Winding Tester

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Build A Simple Winding Tester 1
Only to be used in a non live environment

As an alternative to ringing a transformer as described here, the following  info describes a method to build very simple device to test a transformer winding for a shorted turn.

The transformer must be out of circuit i.e. no load. Connect the clips to the winding you wish to test, press the button ( only short duration tests). If there is no short, the neon bulb will  flash brightly. If there is a shorted turn present, the bulb will either not light or light very dimly.

Try this on a few known good transformers to get used to how the neon behaves.

Neon Flashes= No Short
Neon Does Not Flash= There is a short

Build A Simple Winding Tester 2

Previous Build a simple LOPT tester
Next Build A Zener Diode Tester
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