Vanda & Young to Australia in 1973 and were reunited with Ted Albert, who had established Albert Productions under EMI Records. Recently formed AC/DC's band members, and George Young's brothers, Malcolm and Angus Young joined the Marcus Hook Roll Band project on guitars to complete "Tales of Old Grand-Daddy" with John Proud on drums. In late 1974 Vanda & Young produced AC/DC's single "Can I Sit Next to You Girl". They also produced early albums for AC/DC including "High Voltage" and "TNT" (both 1975), "Dirty Deeds Done Dirt Cheap" (1976), "Let There Be Rock" (1977), "Powerage" and "If You Want Blood You've Got
Angus Young he would begin using in 1977, was also used as a compressor and a booster in his signal to "fatten up" his tone. Ever since adding it to his rig, it was used on several albums in the studio for chosen rhythm guitar tracks and all lead guitar tracks. Beginning with "Rock or Bust", due to the discontinuation of the Schaffer system, Young began using a replica of the unit's preamp with a commercial wireless unit. Contrary to popular belief, Angus and Malcolm have both stated in guitar enthusiast magazine interviews that very little pre-gain, if any, is used on