Super rare 1950's BRIMAR 6v6 gt 6v6GT Black plate grey shield, so great in Fender Champ

I propose you a rare red print Brimar 6V6GT  in good condition.       Black plate ,  grey shield, square getter.   Made in UK in the 50's.
     
I know less about those super grey shield , having seen more 50's black shielded Brimar 6v6gt, but the thing I can say is that they sound so good . Quite close to RCA one. Super musical full bandwith and really great tone. It has one single square getter, black plate and copper rods. As you can see the getter flash is superb with a perfect shiny mirror aspect.
         

The tube has been fully tested with 2 different tube testers with great sucess . No issue , no gaz, no shorts, no leak etc...


Test results   80 %            so not full spec but many hundreds hours of pure pleasure .
For total transparent description I want to say this one has a very slight wobble on the base . This is very common on old 6v6 tube, many seller don't even tell you . It's not big and has no incidance on the sound. You can put a silicon ring damper at the edge of the base if you like ...

Taking in account all those parameter I decided to sell it at quite low price for such a rare tube.   So a nice opportunity to test those great Brimar at lower cost.     
Considered by many vintage Fender owners as one of the best sounding 6v6gt...if not the best many prefer the Brimar over the RCA holy grail !!!
                               

I COMBINE SHIPPING ,

 SO PLEASE HAVE A LOOK AT MY OTHER INTEMS AND SAVE .

Shipping price includes full insurance and tracking

This tube has been tested for
Heater filament test: Short circuit
Heater filament test: Open circuit
Heater filament test: Tolerance check
Heater cathode insulation: Leakage
Heater cathode insulation: Short Circuit
Tests for heater current abnormalities
Amplification factor
Voltage gain
Power gain
Screen grid test
Mutual conductance test
Dual test for double triodes
Emission
Inter electrode leakage
Inter electrode short circuit
Flash-over (arc detection, high voltage breakdown)
Gas ionisation test with a first tester
and then with a second tester ( Jackson 648S ) for
Filament Circuit Shorts Plate Life test...

The Jackson 648. It is definitely one of my favorite tube testers. While it does not employ a mutual conductance test circuit, it does use an advanced emission circuit that applies separate element voltages to each tube element, and separate load circuits are also used. “These voltages and loads have been carefully selected for each tube to meet most ideally the normal operating condition of the tube.” (Source: 1950 Jackson catalog.)

In my experience, the Jackson circuitry is very effective, and often will surprise you with accuracy that approaches Hickok’s coveted “mutual conductance” test method. ( Source tubesound web site.)

I do my best to test and describe the tubes the best I can. Note that test results may vary from one tester to an other so this must be taken as an indication, although my jackson is regulary tested for calibration.  Photos are part of the description you get what you see.