Siemens Halske versus Siemens Rohre


I am new to tubes and have heard that Siemens Halske tubes are much better than Siemens Rohre. I am wondering if this is true for 6DJ8 tubes. Often times on Ebay I see tubes advertised as Siemens Halske but the box in the picture will say Rohre on it. Should I completely eliminate any Rohre tubes from consideration? Thanks in advance for your input
Joe
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Joe,

Here's a link to a lot of information regarding Siemens tubes:

http://db.audioasylum.com/cgi/search.mpl?forum=tubes&searchtext=siemens+rohre

Joe,

Here's an Ebay ad that looks like the tubes you want:

http://cgi.ebay.com/2-NOS-Tubes-Siemens-Halske-CCa-6922-E188CC-E88CC_W0QQitemZ110111680990QQihZ001QQcategoryZ67816QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Joe,

Here's some more threads to help you understand the various Siemens CCa:

http://db.audioasylum.com/cgi/search.mpl?forum=tubes&searchtext=siemens+cca