: The tester uses 8 LEDs to indicate the Q-factor. Green : High Q (Good). Yellow : Medium/Marginal Q. Red : Low Q (Bad). No Lights : Absolute short circuit.

To build this circuit based on the standard "Anatek" or "Bob Parker" designs, you will need: 1x 74HCT14 (Hex Inverting Schmitt Trigger) or LM339. LEDs: 2 Red, 2 Orange/Yellow, 4-6 Green.

The is a specialized diagnostic tool used primarily for identifying shorted turns in high-Q inductive components like flyback transformers (LOPT), switch-mode power supply (SMPS) transformers, and deflection yokes. Schematic and Circuit Overview

: Because different transformers have different native Q factors, it is often best to compare readings against a known good component .