I can still remember the feeling of hearing 'Runnin' With The Devil' burst from my cheap headphones - most likely on my Sharp Cassette Walkman, by the way.
My older brother had a cassette of Van Halen's '1984' which I ritually abused often in my Walkman and ghettoblaster. 'Panama', 'Hot For Teacher' and 'Top Jimmy' were smoking tunes to me, and even 'Jump' for all its synthy pop sheen had a ripping guitar solo. The sound, attitude and tone of that record convinced me to reach back and before long I had a double cassette copy of Van Halen I & II.
It smacked me around the head. The car siren fades out, the bass thump introduces the end of the world, and Eddie rips into that simple, arrogant riff. The guitar tone was like nothing I had experienced before, and I was a guitar child of the eighties.