I bought this tuner together with my first stereo system more than 30 years ago. It is still working but with a few problems. The memory (both AM and FM) is not working (Memory cannot be set). A few years ago, 2 of the 7 memories could still be set. Now all of them cannot be set. Also, for FM, no stereo reception, just mono (to be more exact, the stereo light won't turn on). Although it is an old tuner, it is quite a good memory to me. I do hope that someone can give me some suggestions on how to fix the problems. I have opened it but could not see any damaged components. I have some basic electronics knowledge and soldering skill.