Tube fakes, any experts out there?


I understand that there are many counterfeit tubes out there, anyone have knowledge on how to tell the differences between the real ones and the relabled ones. I just bought some Siemens CCa's which I wonder if they are real.

thanks
128x128justlisten
Try posting some details on www.audioasylum.com under "tube asylum." Usually some experts there....
Justlisten- were they "bulk packaged" in white boxes from a guy in Singapore, bought via ebay. I bought some too, they are labelled Siemens Germany, and come with individual test results labelled on each box. I bought a matched quad and was wondering the same thing; shouldn't they say W. Germany unless they were pre-WWII?
Rmml, excellent information! That's what I love about this site, brothers (a few sisters) that will take time to help others! THANKS ALL.