MULLARD for RCA 12AX7A NIB/NOS Short Gray Plate Tubes Platinum Match on AT1000

Mullard for RCA 12AX7A ECC83 Tubes (NIB/NOS). Short Gray Plates - Top "Ring" Getter - TESTS NOS. These were manufactured at Mullard's Blackburn Plant. Mullard private labeled these tubes for RCA as they did for IEC Mullard, Amperex, Philips, GE, Fisher and many more... Excellent sounding European 12AX7 at a reasonable price.. Platinum Triples Matched on Amplitrex AT1000. Amplitrex AT1000 Test Results 90%+ GM = Within NOS Specs 90%+ EM = Within NOS Specs.

2.0 gV = SPEC. 1.9/1.9 (95.0 /95.0%). 2.0 /2.0 (100.0/100.0%). PERFECT = 0.0% (10% or less = Outstanding). Balance (Balance Goal = Mhos > 10% / Gv > 10%).

Tube 1: A to B = Mhos - 0.0% Gv - 0.0%. Tube 2: A to B = Mhos - 0.0% Gv - 0.0%. Match (Tube 1 to Tube 2) Match Goal =. Mhos > 10% / Gv > 10%. Tube 1A to 2A = Mhos - 0.0% Gv - 5.0%. Tube 1B to 2B = Mhos - 0.0% Gv - 5.0%. 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 we 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 our tubes are tested thoroughly on an Amplitrex AT1000...

Our backup tube testers are a Hickok 752A, Precision 612 and Eico 667... I WILL NOT GUARANTEE THAT OUR READINGS WILL MATCH YOUR READINGS.. We stand behind everything we sell... Our goal is to "Create a Positive Experience"... It starts with you, "The Customer"!!

NIB: New in Original or White Box. NOS: New Old Stock (given to tubes that meet or exceed factory values). UTS: Used Tube Tests Strong.

UTG: Used Tube Tests Good. 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.. We do not mark merchandise values below value or mark items as'gifts' - US and International government regulations prohibit such behavior.