Measurement technology for your electronics project
One thing is clear: When you work with electronic components, you must not lack the right measurement technology. Because you can only find out quickly whether a component is defective or just a loose contact if you have the right measurement technology to hand.
Of course, this does not mean that you have to buy expensive laboratory power supplies and multimeters for your hobby - quite the opposite. Often relatively inexpensive measuring devices fulfill your purpose perfectly. In the low-price segment, we can recommend the DT830D multimeter, for example, which is already available for less than 5€.