New Matched Pair (2) TAD ECC83-Cz / 12AX7 Premium Selected Vacuum Tubes

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New Gain Matched Pair of Tube Amp Doctor ECC83-Cz Premium Selected Vacuum Tubes

A wonderful tube with an emphasis of warm tones, lows, mids, overdrive and even highs. The A-Frame construction makes this an exceptionally low noise tubes, perfect for high gain applications.

Tested & screened for the following by TAD & double checked and/or matched by us. This tube was specially selected as premium by TAD and checked for.

-      Low Noise Test

-      Microphonic Test

-      Gain Test

-      Sonic Tests

-      Shock Tests

-      Listening Tests

-      Balanced Output Test

Testing and/or Matching

Tested and/or matched at full operating voltage with regulated power supply on a MaxiPreamp tester for both gain (Mu) and general mutual transconductance (Gm). Our goal is to match within 5% with an upper limit of 10% (15% is the industry limit to consider a set).

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