Geordie are a great band but you got to be careful what album you get heres a run down of their albums:
Hope You Like It (1973)
Good boogie pub hard rock with a bit of Slade thrown in. Johnson's vocals are great. As heavy as say Slade at its heaviest. Second best album.
Don't Be Fooled By The Name (1974)
Brilliant must have. Like heavy Nazareth from around the Razamanaz and Loud N' Proud era of that band. Again Johnson's vocals are great. Like i said if you were to own one album by Geordie get this.
Save The World (1974)
Not great, alot of experimenting of styles other than hard rock such as disco, soul, reggae etc. A couple of heavy tracks but overall you should probably avoid.