or Conrad online http://www.conrad.ch/ce/fr/category/...FfQatAodlXUAcA
According to its owner, Pusterla in Zurich is the only remaining retail electronics parts/hobby shop in the country, other than the Conrad chain (based in Germany).
I'd suggest ordering online if you can't make it to Zurich. Look at https://learn.adafruit.com/ for tutorials on basic electronics hobbying (I dunno if that's a real word, but I'm using it!).
It doesn't help the OP though.
His best bet would be to buy online and get help from another source (we could have a thread on here for example) or use a dedicated forum.
Have a look at the web site.
Don’t know if Pearl.ch would have anything for you.
http://www.pearl.ch/;jsessionid=iaaDKH83CoLOC5z4piTSu
They have 4 shops in Switzerland, but they’re all over on the German side. But if you click on the French flag you’ll be taken to their French website which may be better for you.
There is also http://www.play-zone.ch/en/ (arduinio kits and electronics) and http://www.boxtec.ch/ (same).
http://www.brack.ch/ also sell electronics kits (Velleman) and Arduino stuff, but not single components. Delivery is free (and next day)
I noticed that with Playzone, Boxtec, that the quality of some of the components is not so good - e.g. resistors with extremely thin leads, that seem to resist making a good contact in the breadboard, etc.
This is located near Basel
http://shop.griederbauteile.ch/
I would still recommend http://www.taydaelectronics.com/ if you could wait for 1-2 weeks