I have a flashtube (Novatron 2000/2001/2060, 500J 800V), but I don't know
the polarity .

Would you help me, is there any polarity of this tube, if there is which one
is cathode ??

I have two pictures of it :
http://www.kolumbus.fi/ari.n/valokuvat/flashtube01.jpg
http://www.kolumbus.fi/ari.n/valokuvat/flashtube02.jpg


Best Regards, Ari Nousiainen