This round, I’m testing tubes which claimed to be “matched pair” by the seller. I’m using uTracer 6 for this purpose. In general, it’s not easy to find what so...... Read More

Construction video of my new uTracer V6. Previously, I built uTracer V3+ which also very good Tube Tracer/Tester. Only somehow voltage and current is a bit limited. You can see...... Read More