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1. 2 x TESLA ECC803S ECC83 12AX7 Tubes

   NOS Tesla ECC803S. Perfect working order. Minimal use in a Croft preamp to check operation as I have no meter to test.

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2. Balanced Pair ECC83 / 12AX7 TESLA Foil Getter - 1961'y - NOS nr2

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3. Balanced Pair ECC83 / 12AX7 TESLA Foil Getter - 1971'y - NOS

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4. 1 X ECC83 TESLA TUBE. 1960s PROD. SOLID GETTER. 50. CB401

   1 X ECC83 TUBE. GRAY PLATES, HALO GETTER. 1960s PRODUCTION.

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5. 2x TESLA ECC803S (CV4004 7025) Long Plate lk Siemens E83CC 1960 Prototype Series

   2x TESLA ECC803S (CV4004 7025 ~5751), 4/1960+8/1960 Prototype Series, 100%/Matched, 123+126.where a new/unused tube should have S/gm = ~1.60 mA/V, good value for transconductance starts at 1.2 mA/V.

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6. 2 x TESLA ECC803S ECC83 12AX7 Tubes

   FOR SALE 2 TESLA ECC803S NEW NOS TUBES.

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7. Balanced Pair ECC83 / 12AX7 TESLA Foil Getter - 1958'y - NOS nr7

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8. Balanced Pair ECC83 / 12AX7 TESLA Foil Getter - 1958'y - NOS nr5

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