TELEFUNKEN
ECC83 Telefunken 12AX7 Matched Pair Smooth plates, diamond bottom, DYNACO USED
ECC83 Telefunken 12AX7 Matched Pair Smooth plates, diamond bottom, DYNACO USED
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€249,50
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Two (2) tubes, matched pair of rare ECC83 12AX7 Telefunken rebranded Dyanaco, smooth plates, diamond bottom, made in West Germany, in Berlin tube plant in 60s.
These are real Telefunken diamond bottom ECC83, pullouts from DYNACO PAS3 preamplifier. They are low noise and tested 90% of NOS, so they have a lot of life left in them, in some well designed preamp, even decades. The same codes, from the same batch, carefully selected for low noise for DYNACO RIAA PREAMP, perfect prints.
They are tested with 250V on plates and -1.5V on grids:
Tube 1: 1.9 / 1.8 mA
Tube 2: 1.8 / 1.7 mA
100% value for NOS tube is 2.15mA
f you want to know more about Telefunken ECC83 12AX7 and different types of smooth plate and ribbed plate versions you should read this article on my site: www.tubes.rs/ecc83-telefunken-12ax7/
