I’ve restored a number of these Nordmende radios over the years. Always replaced the AEC rectifiers. My thoughts are that the components used in these radios were pretty decent quality, if memory serves, I only replaced capacitors in one, and only because the customer requested it. My complaint with European radios has always been exposed fuse terminals mounted on the power transformers and oxidized switches. We have one here that likes to play FM, if we try to select AM it takes many tries until the oxidation lets go. It can be frustrating even for me… a customer wouldn’t tolerate it for a second. I’ve tried deoxit, etc. over the years, it helps for a while, but the problem always returns. Radio and record player plays fantastic, gorgeous sound, but that annoying switch drives me bonkers!