Hansson (keys) and Karlsson (drums) on TV in Sweden 1967 for 11 minutes playing instrumental music in black and white, those were the days! If you watch till the end you may just figure out why Hendrix was a fan. Hendrix recorded their song Tax Free and it was released posthumously on the album War Heroes in 1972. You Tube message suggested the guitar player may be Bengan Dahlén.
Bo Hansson was famous for his Lord Of The Rings album released in Sweden in 1970, reaching the Top 40 in England in 1972. He died in 2010.