oldish newbie

hi

been a diy audio enthusiast since middle school. then followed to get my degree in electrical engineering . from few months ago started digging through some old stuff and reconnected with my old DIY audio passion. bough a few vacuum tube old radio and a reel to reel tape player. also am reviving my old equaliser and a turn table and a transistor amplifier. changing alot of electrolytics for now. and addapting some cheap electronics one can buy from ebay/aliexpress, but finding also problems