[2] In Belfast he joined Deep Joy, also including bass guitarist Gerry McAvoy, who supported Rory Gallagher's band Taste on tour in 1970.
[3]: 121 He also played with Billy Boy Arnold, and in 1976 he joined the 1950s-style rock and roll band Yakety Yak, with whom he stayed until 1980, recording one single with them in that time.
In 1981 several members of Yakety Yak, including Campbell, formed another 1950s-style band called the Dragons, who subsequently changed their name to Sonny King & the Sons of Swing in 1982.
Campbell worked with the South London-based band Sailin' Shoes with guitarist and singer Steve Boyce, bassist Bill Adey and keyboard player John Cooke.
Previously a very fit person and enthusiastic cricketer and footballer, his health started to deteriorate as his drinking habits changed "from virtually nothing to hard spirits, and lots of it, in a very short space of time".