40 Things Whose Purpose Was Unknown Until the Internet Came to the Rescue

[post_page_title]Roll back the 60s[/post_page_title]

Before we had streaming, people used cassettes and CDs. Of course, we have come a long way, but how would you feel if you found this on a magnetic device with heaps of cables around it? You have to go back all the way to the 1960s for the answer to this question, because this item is actually called an audio head demagnetizer.

Roll back the 60s

When recording with cassettes, this tool was used whenever there was built up magnetism in the tape path. There is absolutely no way that the original poster could have guessed this.

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