As far Fender bass amps go I would recommend reading up on some of the blackface and silverface bassman circuits (some of the circuits stayed the same into the seventies I believe) or a Musicmaster combo bass amp from the seventies is supposed be awesome. I wouldn't mind having one myself. Gareth Brown said:
I'm in the process of trying to find band members in the Bournemouth/Dorset area (UK). I play an original 1967 Supro through a Fender Champ from around 1972. I can get a good sound from it but feel very limited at the moment - I think i'm gonna need a bigger amp and maybe a couple of pedals (analogue of course). I was thinking of playing through a decent old Fender bass amp as I have been advised that this often produces good results. Any suggestions?