Any old school hard rock/metal fans amongst us?  

Hey do we have any old school hard rock fans between us? By old school i mean thin lizzy, led zeppelin, deep purple, or even older bands that have influenced the genre so much!
I am a fan of this period of 65-75 music.We got real diamonds in this music when electric sounds and effects werent done at studio engineering, instead what you got was what was created by those incredible musicians.
Any picks among those great bands, performing at 65-75 or maybe up to 1980, when NWOBHM appeared?