Mullard Blackburn EL34 Xf2 TRUE NOS Double Halo Tubes PLATINUM MATCH AT1000 6CA7

Mullard Blackburn EL34 Power Tubes (PAIR). TRUE NOS - Double Halo Getter - Welded Plates. Tube #1 Labeled: ADZAM - Xf2-B3D1. Tube #2 Labeled: GE - Xf2-B6J2. Platinum Matched on AT1000 - TESTS NOS.

Here are the desired target numbers for a EL34. UMhos: 11000 = SPEC (+/- 5%).

MA: 100 = SPEC (+/- 10%). UMhos: 12170 (110.6%) Tests within NOS Specs. Emission: 102.6 (102.6%) Tests within NOS Specs. UMhos: 11860 (107.8%) Tests within NOS Specs.

Emission: 100.0 (100.0%) Tests within NOS Specs. I Stand Behind Everything I Sell. 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 OUR READINGS WILL MATCH YOUR READINGS.. I stand behind everything I sell... My 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.. We do not mark merchandise values below value or mark items as'gifts' - US and International government regulations prohibit such behavior.