Audio Research labeled 6dj8,Ecc-88, 6922 tubes NOS, 8 tubes total, usedAudio Research labeled 6dj8, Ecc-88, 6922 tubes NOS, 8  tubes total,          same date codes, Amplitrex testedI have for sale (8) Eight Audio Research labeled, new old stock 6DJ8, ECC-88, 6922 vacuum tubes. If my ad is still listed the tubes are available. If you're looking to re-tube your Audio Researc...165.00

Audio Research labeled 6dj8, Ecc-88, 6922 tubes NOS, 8 tubes total, same date codes, Amplitrex tested

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Condition
10/10
Payment methods
Ships fromSt. Paul, MN, 55122
Ships toUnited States
Package dimensionsunspecified
Shipping carrierFedEx
Shipping cost$9.00
AverageResearch Pricing

I have for sale (8) Eight Audio Research labeled, new old stock 6DJ8, ECC-88, 6922 vacuum tubes. If my ad is still listed the tubes are available.
If you're looking to re-tube your Audio Research preamp or line stage, these tubes would be an excellent match. Of course, they will also work equally as well in non Audio Research equipment too. These are high quality NOS European, Tungsram tubes which are regarded as some of the best NOS tubes available. The tubes are coded as Ecc-88 which is the European version of the American 6dj8 tube. The 6922 is the Russian industrial (higher voltage) version of the same tube. All 3 tube types are interchangeable. NO INTERNATIONAL SALES.

My ad is for 8 tubes total....but if you need a quad, six or 10-12 tubes for an audio Research SP-10 email me for pricing. The tubes are tested on a Amplitrex AT1000 tube tester which is the current reference standard in tube testers and is widely regarded as the world best tube tester.
These tubes are vintage NOS tubes and have never been used or installed in equipment. The date code on the tubes are all from the same week in 1982....it's extremely rare to find NOS tubes for reasonable prices with the same date codes!! The lettering on the tubes say Audio Research Corporation, A.R.C. ECC-88 and the lettering is in excellent condition. These tubes are part of a 100 tray factory direct lot, so they do not have individual boxes but I will package them in brand new generic tube boxes for shipment.
These are high-transconductance (GM) tubes and are tested after a recommended 5 minute warm up. I test all the tubes on a Amplitrex AT-1000 reference grade tube tester using the auto bias setting and the tubes ratings for both sections came in over 100 for the important GM transconductance rating. The Emissions ratings came in at 90 to above100 for the two sections
I also tested the tubes for shorts and leakage and they passed all the tests. In addition, I listen to the tubes through my tube tester for noise and they passed the test. The listening test is important...very few tube testers allow you to listen to tubes.
Shipping will be $9 via Fed-ex ground. I always carefully box all my Audiogon items for shipment.
NO INTERNATIONAL SALES, No Canadian sales, Continential USA sales only.

For payment, I accept paypal . I will absorb the paypal and audiogon fees.
Audiogon members with no feedback please email me before making an offer to purchase.

If you have any questions about these Eight (8) NOS Audio Research labeled 6DJ8/6922/ECC-88 tubes please email me and also If you need a different quantity as mentioned above, email me too. Quanities are limited on these tubes as they are NOS tubes. Thanks.

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7 day return for defective tubes.