Thunderstruck opens with Angus Young's iconic tapping intro on the B string, creating a rapid-fire pattern that sounds like lightning. His SG through a cranked Marshall produces a bright, cutting tone with enough gain for the tapped notes to ring out clearly. The tone is raw and aggressive with the SG's bridge humbucker providing a sharp, biting attack that cuts through the mix.
AC/DC guitar tone settings for both eras; the SG, the Marshall, amp dials by era, and how to approximate it on Helix and Quad Cortex.
Both run real Marshall circuits in 20-watt format, but a JTM45 with KT66s and a 1959 Plexi with EL34s are different amps. Here's which Studio you should buy.
Both are 20-watt small-format Marshalls with the original Marshall circuits inside, but a 1959 Plexi and an 800 are different amps. Here's which Studio you actually want.