Awesome 1963 NOS PHILIPS AMPEREX ecc88 6DJ8 Heerlen with same code.Great tone ! Double stage getter.

Here for sale a  rare "A" NOS and perfectly matched pair of  highly sought after Buggle boy Philips Amperex ecc88 6DJ8 made in Holland in the great and renowned Philips Amperex Factory of Heerlen , in may 1963.

Tests results    

tube 1  Code GA3 Δ3E5 99 %   99 %

tube 2   Code GA3 Δ3E5 98 %   100 %

Both tubes are same exact model, same date code, superb construction, highly sought after best version, with double stage getter , round shoulder glass, thick reinforcement parts. Real work of art.

Super strong , perfectly balanced and matched , within 2 % . So hard to get a better pair for stereo use.
  

Absolutely superb sounding , sounding tube, one of the very best. Ultra detailed and "lively" tube

And very long life in perspective.

Top NOS condition. Sold as almost new very, very few use.

I COMBINE SHIPPING ,

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

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

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 regulary tested for calibration.

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

Private sale so no guarantee or return please.

But if any problem (never happened yet ) please contact me first.

Thank you for your interest.