Blue Ring Tester is a specialized diagnostic tool used to test the health of high-Q (low loss) inductive components, such as flyback transformers (LOPT), deflection yokes, and switch-mode power supply (SMPS) transformers. Anatek Instruments
Power / reference (if active electronics used)
Standard multimeters check a coil's health using simple direct current (DC) resistance. However, a transformer with a single shorted turn will still read normal resistance while completely failing in a high-frequency circuit. blue ring tester schematic diagram exclusive
The Blue Ring Tester solves this by turning the component under test into a temporary parallel LC tank circuit.
User interface
The is a specialized diagnostic tool designed for testing high-Q inductive components, such as flyback transformers, line output transformers (LOPT), and switch-mode power supply (SMPS) transformers. Unlike standard continuity tests that only detect direct opens or shorts, the ring tester evaluates the "Quality Factor" (Q) of a coil by measuring its resonant response to a voltage pulse. Understanding the Ringing Phenomenon
A comparator compares the amplitude of the ringing signal against a reference voltage. Blue Ring Tester is a specialized diagnostic tool
Whether you buy a pre-assembled unit like the AnaTek kit or build your own from this exclusive guide, the Blue Ring Tester is sure to become one of the most frequently used tools on your electronics bench.
Typically, a Blue Ring Tester has 8 LEDs arranged in a scale: often 3 red, 2 yellow, and 3 green. The Blue Ring Tester solves this by turning