Does anyone know for a fact that Mullards did or did not manufacture for Telefunken? The reason for asking is coz I bought a pair of Telefunken 12AX7 which had no <> at the bottom, but the letterings were partially smeared off. The seller told me that these were Mullard made Telefunkens. Is this a fact???
I63 and B7L3
Blackburn 1967 or 1977 , 'shortplate' version ECC83 with nickel grid posts
cheers
316a
Blackburn 1967 or 1977 , 'shortplate' version ECC83 with nickel grid posts
Thanks 316a and Amperex. I came to the above conclusion after researching the pdf file link that Colt gave. I am learning about tubes and how to decipher them. Very interesting.
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