GE NOS Testing Balanced 3 Mica 12AT7WA (6201/ECC81) Vacuum Tube Hickok Tested. Rectifiers and Diode tubes do not have Transconductance values. VACUUM TUBE TESTING. Therefor NOS testing and well balanced.
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There is always a possibility of a typo or a an error that can potentially be made on our end without the intent of doing so.
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Reference tube is tested first then the tube listed for sale. Test procedure.
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Matched Pair MULLARD 12AT7 ECC81. Made by Mullard labeled for GE. Preamp Type Mini Tubes. TESTED on HICKOK TV7.
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One Excellent GE 12AT7 ECC81 Tube. Discriminating Results from the AMPLITREX Tube Tester. AMPLITREX AT-1000. Grey Plates. Strong & Balanced GM. GM Takes Precedence Over EM. GM [%] : 96/96. Strong EM > New Tube, Long Life.
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These tubes are Gray Plates with Halo Getters. Made in the USA!
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🔹 GE 12AT7 Construction Features. Type: Dual triode. Plate Dissipation: 1.5W per triode. 🔹 GE 12AT7 Sound & Performance. Inaudio circuits, the GE 12AT7 is described as O FOIL GETTER. TUBE TEST 100% OR BETTER ON B&K 747B TESTER.
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Triple Platinum Matched on Amplitrex AT1000. Amplitrex AT1000 Test Results 90%+ GM = Within NOS Specs 90%+ EM = Within NOS Specs. All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE and NOISE (large tube lots are not tested for noise).
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