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Telefunken in Disguise?

A highly rated Audiogoner sold me what are supposed to be a pair of Telefunken 12au7 smooth plate tubes. What actually arrived were tubes labeled "Mazda BelVu 12au7  ECC82." They do have what appears to be a diamond engraved on bottoms, although it is hard to see. He insists these really are Telefunken - made 12au7 smooth plates. I do not know enough to accept or not. I cannot find anything on-line confirming his representations.

What say the the tube experts?

Neal
nglazer
rodman99999
6,130 posts
 
Tele’s diamond is actually an embossed(raised/molded) emblem, rather than engraved. If it doesn’t appear as shown in these pics- the tubes aren’t genuine Telefunken: https://www.google.com/search?q=telefunken+diamond+bottom&espv=2&biw=1138&bih=645&tbm=isch&imgil=yDRmlK2HP6o9jM%253A%253BcFBa4mwTgh_FvM%253Bhttp%25253A%25252F%25252Fwww.tubemongerlib.com%25252Fgallery2%25252Fv%25252F7308%25252FTelefunken%2525252BE188CC%2525252BDiamond%2525252BBottom%2525252B-%2525252BULM%2525252BWestern%2525252BGermany.jpg.html&source=iu&pf=m&fir=yDRmlK2HP6o9jM%253A%252CcFBa4mwTgh_FvM%252C_&usg=__Zg8UGz3kJNKD1kTsqPbwaH-T5rw%3D&ved=0ahUKEwjX-cnnrcHPAhVH54MKHUxdD5AQyjcILw&ei=XbzzV5fXAcfOjwTMur2ACQ#imgrc=yDRmlK2HP6o9jM%3A
nglazer OP
846 posts
 
Thanks, Rodman. I may have used an inexact term. I will check them again, and perhaps post a photo.


onhwy61's avatar
onhwy61
5,216 posts
 
There are Telefunken smooth plates that have Mazda labels and they should have the diamond embossed.  That could be what you have.
ebm
9,311 posts
 
Be carful  i once got Telefunken that sounded like junk hope you did not pay to much and they sound good.Good luck.

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