Hi, Recently I found this web page with some original sharp boombox catalog on it. There may be more original catalogs of other brands on the website, but since I do not understand Japanese I cannot access these pages. Link: http://www.video-koubou-topaz.jp/SHARP-RADIO-BOOMBOX-1981.html
I have just go through the website briefly, it is probably a website of a store or museum of old japanese electronics. The first few sections on the home page are the advertisements of their services such as transfer video on VHS tape onto DVD. After that is their address in Tokyo. And after the address, there is a few links, which is probably the categories of the articles. This first link are the boomboxes, including probably only the one piece boxes. The second one seems to be about multi-piece boomboxes, tape decks and headphones. The third one is about TV boxes and radios. The fourth section is about old daily supplies, such as bicycles and pencils. The fifth section is lab, which is probably about playing with cassette tapes and other tapes. The last section is about video and audio recorders. Most of the stuff listed there are categorized by manufacturers and by years. So I guess this website is pretty useful, hope this helps.
That's a great website HRLE92, check out my another cool Japanese Thread and you can find a lot more. If you have free time get on Yahoo.jp and run through their search engine with random boxes or part numbers and look at the pages or images. Sometimes you have to run the website through google.translate and you can read it in your preferred language. There's a lot of them since they still seem to have the blogs or free websites we used to have. Also, some of the links are from 10+ years ago, don't stop, get on The Internet Wayback Machine and type the site in, in most cases you can pull up the old site. If you find some more places feel free to post them and don't worry about double-posting, I do it all the time, although not intentionally.
