I can give you more info once my husband gets home, he's been involved in the Zurich punk scene since the 80s.
A friend of ours runs a punk record shop, Vinyl Pirate, in Zurich. It is located in the basement of Analph comics at Strassburgstrasse 10. Take tram 3 or 14 from the main train station to Stauffacher, and it is a two minute walk from there. Vinyl Pirate is open on Saturdays from 10 till 4, and is downstairs from Analph.
If you do go, tell Alain that Shelley sent you
To get a feeling for what the people might be like, here's a video: Swiss punk / metal / general misfits version of
We are the World (Alain is the one singing in a record shop..imagine that
)