Tester 43101 - measuring alternating current and voltage. Practicing on transformers.
Measuring secondary winding voltage and no-load current of transformers with a pointer meter. This video may be useful for beginners interested in analog pointer meters, and for others. In the video, you'll learn the difference between measuring voltage and measuring current.
Although no-load current is usually of little interest to amateur radio enthusiasts, knowing this parameter allows you to assess the quality of a transformer. The lower the no-load current, the higher the transformer's efficiency and the lower the reactive losses.
Equipment and materials used in the video:
Tester (combination meter) 43101 - two;
Transformers - three;
4-Ohm load resistor.