Pedalboard / 008
Angus Young
Young used the Schaffer-Vega wireless receiver as a boosted, compressed front end for selected overdubs and the solo, with no conventional distortion pedal.
Signal path / A
Hells Bells overdub and solo path
Track-specific documented preamp path
Documented equipment · Source-described order · Serial path
This is deliberately not labelled as the entire Back in Black guitar path. Guitar World's track analysis identifies the primary Hells Bells rhythm as SG-to-Marshall and the Schaffer-Vega on the center overdub and solo. Engineer Tony Platt independently confirms that Angus used the wireless system for album solos and that its filtering changed the midrange. It was a wireless system rather than a stompbox, but its boost and companding materially changed those tracks.