2. amps-preamps
  3. 1217421104

Genuine Telefunken?

The last few years I have really enjoyed the exceptional sound of my tube audio equipment. After reading as much as possible on the net about " NOS " tubes, have narrowed it down to Telefunken 12AX7 and 12AU7 for my Jadis DPL preamp, but now I am really confused and can't believe all the fake ones being passed on for the authentic tubes. I have three questions! 1.) What exactly should I look for on genuine Telefunkens of these #'s, should they all have gold pins? 2.)Is it possible to stumble upon a genuine NOS Telefunken 12AX7? and 3.) Is it just a matter of preference of smooth plate verses ribbed plate? Or is one better than the other? I am new to experimenting with tubes and would love any opinions or comments. Maybe I should just consider a used tube being they have such a long long life. Thanks, Deb
noguerol
larryi
3,718 posts
 
I don't know if the conterfeiters have managed to get the embossed emblem right, but,on the bottom of real Telefunkens should be their diamond symbol that is actually part of the glass pressing (raised surface) and not painted or etched into the glass.

The ones I really like are marked ECC 803D (12AX7 equivalent). They may sound a bit lean and bright in some applications, but, I have never heard a tube with greater clarity and detail. Unfortunately, they are super expensive (though, I've been told, they will last a very long time).
larryi
3,718 posts
 
Oops, I think they are marked 803 S. Sorry, I haven't pulled them from my phono stage in a LONG time.
missioncoonery
1,190 posts
 
A tad off the subject...but try vintage Mullard long plate /square getters if you can find and afford them..the perfect combo for the Jadis pre IMO...Tele tubes sound thin and brittle in that pre compared to these...or the Mullard 7025,more gain but still fluid
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