Grant- how can you tell they are genuine? so far I can tell that dull grey getter supports are older than shiny, but what else. is there anything to the story I heard that no genuine CCas were made with gold pins? I have a quad of gold pin, dull gray tubes stamped Siemens CCa. Of course I also have a pair of 308s in a well known tube dealers box that are inked Siemens 7308, but the dull top of tube marking says 7308 made in USA.
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
Joe
- ...
- 32 posts total
Generally, the CCa can be identified by four seams on the bottle top, date code stamping on the riser or on the glass, grey (or shiny) mica supports, thick getter supports (thin wire getter supports are indicative of early 70s production), shallow rather than deep gettering on the bottle, and the Siemens&Halske blue and yellow box. There are some good photos of Siemens tubes here. How can you be certain? There are no absolutes. If you install the real deal they will have a sound clearly superior to any other Siemens tubes you will have heard before. Huge soundstage. Complete tonal balance from top to bottom, and highs that are extended right to the edge of being too much of a good thing...without going over the edge. If the difference is not profound, then you may not have the real deal. I have not owned any CCa tubes without gold pins that I can recall, but I am not absolutely certain of this. |
Thanks for the input. For example this current add on ebay, the fellow says that there are no date codes etched on glass or frame and they have 07347 made in Germany printed on the back. He feels that they are early sixties. Any opinion as to genuine early 60's http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=003&sspagename=STRK%3AMEWA%3APIC&viewitem=&item=13009844 |
- 32 posts total