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E188CC/7308/6922

Hi,

Trying to identify a tube. Its only markings is E188cc in white label which ressemble Siemens.No branding, nothing else on the picture but grey pins instead of gold pins which is almost universal in this type. Supposedly used in the Navy (but which one). Anybody has a knowledge of this ? Could not identify from Tubemonger or Brent Jesse.
andr
andr OP
109 posts
 
I've got the tube delivered. 6 of them with the same codes on them.

G A C

7 4 E

On another thread, someone said they were Philips made in Hitachi, Japan. Had them in my Premier 16 CJ pre for maybe 20 hrs now. Probably not broken it yet, but they have less gain than my Amperex 6922 Green label. Less vibrant in the upper mids, with deeper and less focused bass. I would let them in for a while but just received Siemens 7308 which I'm dying to try.
casouza
239 posts
 
Hi
Take a look at the Phillips codes here:
http://www.audiotubes.com/PhilipsCodeList.pdf

Those tubes are Ecc88 AKA 6dj8, not 7308 AKA E188cc.
andr OP
109 posts
 
You are right Casouza, they're not 7308. Forgot tomention it !
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