MULLARD ECC81 NIB/NOS Wing Plate Tubes PLATINUM MATCHED on AT1000 12AT7

Mullard 12AT7 "NEW in BOX" Dual Triode Tubes (PAIR). Gray Wing Plates - Angled "Ring" Getter - TESTS NOS.

Matching production Date Codes: "1022-314". Triple Platinum Matched on Amplitrex AT1000. Amplitrex AT1000 Test Results 90%+ GM = Within NOS Specs 90%+ EM = Within NOS Specs. 1.9/1.9 (95.0 /95.0%).

2.0 /1.9 (100.0/95.0%). PERFECT = 0.0% (10% or less = Outstanding). Balance (Balance Goal = Mhos > 10% / Gv > 10%). Tube 1: A to B = Mhos - 0.2% Gv - 0.0%.

Tube 2: A to B = Mhos - 0.5% Gv - 5.0%. Match (Tube 1 to Tube 2) Match Goal =. Mhos > 10% / Gv > 10%. Tube 1A to 2A = Mhos - 0.2% Gv - 5.0%. Tube 1B to 2B = Mhos - 0.2% Gv - 0.0%. Microphonics Test Scale: 5 = Ultra Low; 4 = Very Very Low; 3 Very Low. I've been an Audiophile for over 50 years, 2 time National Champion in Car Audio and owned a chain of Car Stereo Stores...

I have a massive collection of vacuum tubes specializing in mostly esoteric tubes but I have just about any tube you need. Just check the store for the listed inventory. If you have a request just send a message to NOVA.

All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE and NOISE (large tube lots are not tested for noise). All my tubes are tested thoroughly on an Amplitrex AT1000... My backup tube testers are an AVO MKiv and another Amplitrex AT1000... I WILL NOT GUARANTEE THAT MY READINGS WILL MATCH YOUR READINGS.. We stand behind everything we sell...

Our goal is to "Create a Positive Experience" for my customers.. For reasons such as: ordered the wrong item, changed mind, not what I thought it was, wrong color ordered, wrong item ordered or tube readings don't match my tester. Any exceptions are on a case by case basis..

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