Sony Betamax SL-100 Video Recorder VCR Vintage Beta Made in Japan

hi in this box supposedly is a sony betamax slc9es from 1983. it seems to be brand new in box the story behind this i bought this from the local ebay ads somebody found this in his basement it belonged to his grandfather he didn't know what to do with it so he put it up in the local ads which is of course the right thing to do to me it looks like it's actually believable that this thing is brand new and has never been opened the tape looks pristine on it it's also the kind of tape that i know from these kinds of packings from betamax's i decided to open this because there are electrolytic capacitors in there and there are rubber parts that can deteriorate there is the possibility that if i just leave it as it is for an undefined amount of time i might not be able to fix this thing in some point at some point in the future so i decided to open this thing up and look at it and see if i ca