Sorry, it's not in Canada, actually
This is in Europe- I've found the newer American Philips (Magnavox?) products to be nothing but crap, whereas here it's still decent quality and a respected brand.
As an FYI, the store is Technica B.V. in Nijmegen, NL.
They would probably still have some tubes on a back shelf or know where to get them, but I didn't think to ask (and trying to transport them by plane is asking for it!)- This guy is basically your local electronics shop for the hobbyist, all kinds of components and supplies.
Edit: I'd wager a store like that would do really well for the tinkerer in Halifax.. but you might try RAE electronics in Burnside. I usually order all my other stuff from Digi-Key, but if you'd like, I can ask around as I know a few people who support older electronics and might know where to get the stuff locally.