The is a specialised diagnostic tool designed to evaluate the "Q" factor (quality factor) of high-frequency inductive components like flyback transformers and Switch-Mode Power Supply (SMPS) primary windings. Its core "exclusive" feature is the LED Ring Display , which provides an immediate visual health check of a component's internal resonant "ringing" . Key Diagnostic Feature: Tri-Color LED Q-Factor Display
: This pulse kickstarts an oscillating current between the inductor and the capacitor. blue ring tester schematic diagram exclusive
| Component | Value | Purpose | |-----------|-------|---------| | R1 | 10k | Base bias for Q1 | | R2 | 1k | Emitter current limit | | R4 | 10k | Signal output resistor | | R5 | 100k | Attenuation/filter resistor | | C2 | 100nF | Supply decoupling | | C3 | 1nF | High-pass filter | | C4 | 100pF | Low-pass filter (noise reduction) | | Q1 | 2N3904 | NPN switching transistor | | Lx | Unknown | Coil under test | The is a specialised diagnostic tool designed to
: One of its primary advantages is the ability to test components while they are still soldered to the PCB, provided there are no other major shorts in the power rail. An updated version
Start by testing known good coils to see how many LEDs light up on your specific build. Conclusion
The Blue Ring Tester is a diagnostic tool for identifying short-circuited turns in high-Q inductive components, largely based on Bob Parker's original Dick Smith Electronics K-7205 design. An updated version, which features specific schematic details like the CD4015BE shift register and optimized R7 resistance, is currently manufactured by Anatek. Detailed schematics are available in the Blue Ring Tester Assembly & User Manual Flippers.com AI responses may include mistakes. Learn more Anatek Blue Ring Tester Assembly and Review HD