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TELEFUNKEN

ECC81 Telefunken 12AT7 Diamond Bottom NOS Berlin West Germany

ECC81 Telefunken 12AT7 Diamond Bottom NOS Berlin West Germany

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One tube (ONE pcs) of rare NOS Telefunken ECC81 / 12AT7


Diamond bottoms, thick ring getters, made in Berlin plant, West Germany .

Very strong example, as shown on the photos.


They come from original Telefunken service pack with spare tube set for Telefunken professional measurement device. Platinum matched pair, carefully matched by plate current and transconductance and tested in preamplifier to be sure working as intended with no issues at all.
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