I have designed this to look like a high-value "share" within the electronics community.
Notes:
C1: 10nF (1000V Polypropylene or high-quality Ceramic) - Crucial for handling back-EMF spikes. C2: 1nF (50V Ceramic) blue ring tester schematic diagram exclusive
: The tester typically features 8 LEDs that represent the quality (Q) factor of the component: No Lights : Direct short circuit. Red LEDs : Low Q (Likely bad). Yellow LEDs : Medium/Marginal Q. Green LEDs : High Q (Likely good). How to Use the Tester I have designed this to look like a
The pulse must be fast-rising to force the transformer/inductor into resonance. 2. The LC Tank Circuit (Under Test) Red LEDs : Low Q (Likely bad)
Here's a basic schematic diagram for a Blue Ring Tester:
: 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.