WEM made several different versions of the Clubman, including valve and solid state versions. I currently have 3 Clubmans in my collection and further details can be found by selecting the relevant link below :-
Clubman – (Early – circa 1956)
Clubman Mk II– (Mid 1960’s)
Clubman Solid State – (Late 1960s/early 1970s)
Clubman Mk IX – valve (mid-1970s)
Clubman – valve (late 1970s)