Audio Research 6dj8, ECC-88 W.German tubes 4 tubes total, Amplitrex tested

I have for sale (4 ) four Audio Research labeled 6DJ8, ECC-88, vacuum tubes. If you're looking to re-tube your Audio Research preamplifier or line stage these tubes would be a great replacement to your old and worn original tubes. A fresh re-tube can have immediate sonic improvements...these tubes will also work equally as well in non Audio Research equipment too.

These are high quality Western European tubes which are regarded as some of the best and lowest noise 6dj8 type tubes available. The tubes are labeled as ECC-88. The 6dj8 is the American version, the ECC-88 is the European version and the 6922 is the Russian industrial higher voltage version of the same tube. These tubes are vintage tubes and believed to be either be new old stock or very low hours. No International sales, Continental USA sales only.

The lettering on the tubes say Audio Research Corporation, 32001100 (ARC's part number) made in W. Germany, ECC-88. The date codes are all from 1983...the lettering on two of the tubes is weak but legible... the lettering on all of the tubes is fragile due to age.
I will package the tubes in brand new white generic tube boxes for shipment. The tubes test as excellent with the emissions and Transconductance both testing above 100 for both sections of the tubes.
I test the tubes and listened to them on a Reference quality Amplitrex AT-1000 tube tester.
Quantities are very limited on these tubes, and once they are gone they will be very difficult to acquire. The tubes are from the estate of an Audio Research employee.

Shipping will be $3.95 using USPS first class. . NO INTERNATIONAL SALES, CONTINENTAL USA Sales only.

For payment, I accept paypal. Also, check my feedback on previous tubes and purchase with confidence. I offer the normal Audiogon return policy plus a 30 day return on defective tubes.