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Siemens

ECC83 12AX7 Siemens Halske NOS Platinum Matched Pair Munich tube plant 1967

ECC83 12AX7 Siemens Halske NOS Platinum Matched Pair Munich tube plant 1967

Regular price €249,50
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Two (2) fully tested NOS tubes, platinum matched pair of rare ECC83 12AX7 Siemens Halske made in famous Munich tube plant in 1967. Ribbed plates with one side hole, dual getter support version.


I have few 100 pcs boxes of these tubes and I had enough time last few months to carefully measure them on my Metrix and Tesla tube testers for plate current and Hickok for transconductance and to make platinum matched pairs with balanced triode sections. I have also tested them for noise and hum in my phono RIAA preamp.

They are real vintage NOS tubes, made in West Germany in 1967, carefully selected and matched from big batch. They come in generic white boxes. They are the same batch numbers engraved during sealing  I63 =7P, also the more specific internal codes 220 and 221 are printed on every tube.

These are really nice sounding ECC83 12AX7 tubes, very detailed sound, great resolution and transparency and low noise. I have found exactly the same tube, from the same batch, factory branded E83CC by Siemens, it says enough for quality of these tubes, just to mention that E83CC has 10000 hours warranty for all parameters.
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