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 TubeMuseum

	Extremely trustworthy and meticulous. Perfect delivery of delicate items. A+++	Buyer:  budburma ( 200)	During past month
	6922 E88CC PHILIPS AMPEREX S.Q. HOLLAND MATCHED PAIR 2 TUBES 5-STAR BEST SELLER! (#231582768132)	US $205.10

	The best seller on eBay.	Buyer:  newkevivn7 ( 1126)	During past month
	NOS 1960's VALVO 6189 12AU7-WA ECC802S E82CC MATCHED-TRIODE L.N. MIL SPEC TUBE (#291427011719)	US $120.00

	Great advice and quality as usual. This is my 3rd purchase. Highly recommended.	Buyer:  art_audio ( 22)	During past month
	NOS 1950 RCA 12AU7 ECC82 MATCH PAIR TUBES 45° D-GETTER BLACKPLATE TROPHY QUALITY (#291399921776)	US $134.00

	A++ Seller, Trustworthy and Honest, Fantastic Experience	Buyer:  bluemukizu ( 118)	During past month
	NOS 1957 SIEMENS E83CC ECC803S 12AX7 ECC83 BALANCED TRIODE LOW NOISE TUBE mC6≠7I (#231315301756)	US $395.00

…” Dear Tube Museum, My experience is that the stock RODE tubes don't sound very good and are lifeless. I have come to a conclusion with much regret that finding a good sounding new tube for my RODE K2 was a real time-consuming quest, before I purchased your Bugle-Boy 6DJ8’s. 

Before finding the Amperex Holland Bugle-Boy 6DJ8 from The Tube Museum New York, no other tube satisfied my sonic-thirst, leaving me dehydrated for a sonic elixir, that magical and medicinal potion guaranteed to produce tube-mic-love . Thank you! My thirst has been quenched! Now after many tries I appreciate how tubes are graded, tested, and selected by you guys. 

For 6922/ECC88, I suggest Amperex Bugle Boy 6DJ8 with either large the round ‘O’ getters or small ’o’ getters. J.A.N. 6DJ8 are better than Sovteks but good bugles are still in another league. The Telefunkens are good but too neutral and flat and dull in the midrange for me. My best opinion is run to the Bugle Boy’s from the Tube Museum as fast as you can as they have a magic that no other 6DJ8's have. See you again, soon for more”…  Regards, Phil

Made in Holland in 1960-1963

HALO GETTER RING 

AMPEREX HOLLAND ECC88 6DJ8

NOS MATCHED-TRIODE SINGLE TUBE

PERFECT MIRROR SYMMETRICAL BALANCED MICROPHONE QUALITY!

1960's GRAY SHIELD

"O" GETTER

PICTURES will VARY SINCE THIS IS A MULTIPLE LISTING OF THE SINGLE TUBE YOU WILL RECEIVE WITH THE DELTA Δ CODES

1960-63 HEERLEN HOLLAND FACTORY

…"REAL 6DJ8 "CLASSIC ECHELON"ECC88 MATCHED-TRIODE SINGLE TUBE HIGHEST-EMISSIONS

BELONGING TO THE HIGHEST-RANK OF 6DJ8's"...

PICTURES will VARY SINCE THIS IS A MULTIPLE LISTING OF THE SINGLE TUBE YOU WILL RECEIVE WITH THE DELTA Δ CODES

WITH 

AMPLITREX AT1000 DIGITAL TEST-RESULT DIGITAL PROOF!

MIRROR SYMMETRICAL BALANCED mA & GM! 

TUBE MUSEUM CERTIFIED

RARE and DESIRED O-GETTER RING GRAY-PLATE SINGLE TUBE 6DJ8 from 1960's, with hauntingly life like sweet and liquid sound and tubes that will make you "feel" better, knowing that YOU own the BEST there ever can be, or will ever be!

The "FLUTE"(the tip)is BEAUTIFUL MIRROR-LIKE, signifying that this tube is healthy and un-used. As the tube "breaks-in" the flute turns from SILVER - MIRROR LIKE to darker black/brown. This is a VERY STRONG tube with EXCELLENT VACUUM and each triode of both sides is OVER 100%!

THIS TUBE SOUNDS PHENOMENAL!  

Audiophile selected 6DJ8 best suitable for linestage applications, faster, and far more musical and detailed than Telefunken CCa! 

Recommended preamps to use with this tube are AR, Audible Illusions, Conrad Johnson, Sonic Frontiers, VAC, CAT, and more ...

- RODE K2 MIC

- WOO AUDIO

- PATHOS CLASSIC ONE

- AUDIO HORIZONS

- BLUE MICROPHONES CACTUS

AMPLITREX DIGITALLY TESTED

with AMPLITREX AT1000 DIGITAL TEST-RESULT PROOF!

NOS TESTING BALANCED & MATCHED-TRIODE SINGLE TUBE!

1960's GRAY ELECTROSTATIC PLATES

HALO "O" GETTER  

1960's HEERLEN HOLLAND FACTORY

PICTURES will VARY SINCE THIS IS A MULTIPLE LISTING OF THE SINGLE TUBE YOU WILL RECEIVE WITH THE DELTA Δ CODES

GENUINE 1960's HEERLEN HOLLAND AMPEREX 6DJ8

ALL TUBE MUSEUM TUBES ARE TESTED IN THE "FIXED-BIAS" MODE

Most vintage tube testers test tubes by using fixed bias. So, if you are trying to compare test results between the AT1000 and other testers, this is the best way. The Tube Museum ALWAYS choose the "fixed bias mode"  while testing our tubes.  We only test in the "fixed-bias" circuit, this way drift or aging of the tube will not be compensated for, and your tube’s TRUE performance will be displayed on the LCD display, so you KNOW what you are REALLY buying!

Here is the "6DJ8" Amplitrex Set-Up Data Screen.  The heater is a TRUE 6.3 volts, testing at the correct 90 eP with a mA Specification of the true factory data of 15.0mA and a GM or mutual-conductance (also known as mA/V) of 12.5mA/V or 12,500 Gm.

SEE THE AMPLITREX AT1000 DIGITAL TEST-RESULT PROOF!

13,200 / 13,200 GM (105%/105% GM)

16.0 / 15.9mA (106/106% mA)! WOW!

(SOLD! Nov-14-16 22:10:58 PST J.E.)

There's no fooling around at the Tube Museum with meaningless claims like "tests strong!", or some arbitrary number like "the tube test 82 with a minimum of 75" and no maximum stated! We always give you the test results FACTORY-DATA so you can compare with the real factory data sheets in mA and mA/V, just like the original factory data sheet! (specifications).

50+ YEAR OLD NOS

BALANCED & MATCHED TRIODES

HIGHEST EMISSIONS! 

* Tested in the fixed-bias mode like Hickok testers!

PASSED THE AMPLITREX DIGITAL TESTS = NO GAS and NO HEATER-TO-CATHODE LEAKS!

zero (0) Heater-to-Cathode leakage

EXAMPLE OF HOW TO READ A TUBE WITH THE DELTA Δ CODE

GA6 Δ3L3

Δ = PHILIPS HEERLEN HOLLAND