Extremely rare 50's TUNGSRAM el84 6bq DISC FOIL GETTER matched pair WELDED PLATE great Mullard alternative for Vox ac30 Marshall Orange

Here is a super rare and superb "A"NOS Tungsram   el84 6bq5 matched pair. Super early disc foil getter with welded plate and copper rods, made in the 50's in Hungary.
Highly sought after by those who know what these tubes are.

Tests results 
Tube 1    98 %
tube 2    98 %

As you can see they have incredible shinny mirror like getter flashes on many spots not only on the top ! Superb !

One have the yellow RTC logo with the Bentley guarantee label and the other has the regular Tungsram label, but same exact tube, brand, special model, construction and period of production.
Those tubes are almost new, top perfect condition, super strong and perfectly matched.

Excellent choice for any device needing great sounding el84, best choice for high end hifi or any great guitar amp, perfect for Vox , Marshall, Orange etc.
Kind of "Mullardish"sound with a bit more attack and more detailed and slightly present high frequency with very nice break up. Rich, detailed, warm and punchy sound. These Early model with disc getter seems to be a bit warmer and have a bit more character than the later 60's and 70's halo getter model.

EXCELLENT sounding tubes !!!

I COMBINE SHIPPING ,  SO PLEASE HAVE A LOOK AT MY OTHER INTEMS AND SAVE .
             

These tubes has been tested with a first tester 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

and then with a second tester ( Jackson 648S ) for

Leakage

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 regularly tested for calibration.

 Photos are part of the description you get what you see.