Buy 1 or 10 1958 Mullard 12AX7 ECC83 Triplett Tst NOS

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Click to get free eBay tools at NOTE: The Buy it NOW PRICE IS FOR ONE TUBE. BUT YOU CAN PURCHASE AS MANY AS REMAIN.Late 1950s Mullard tubes are some of the best rated 12AX7s ever. are 10 of them but NOTE: The Buy it NOW PRICE IS FOR ONE TUBE. However, you can buy as many as remain. The listing starts with 10 tubes!'s the story on these: I got them from a person who attended a technical school in the mid 1960s. They were stopping their training on tubes and dumped most of their tube training equipment - including some Heathkit tube amps they used to learn troubleshooting!! One of the students was given permission to take the tubes, but the amps went in the trash. Oh well.So these tubes were removed from those amps around 1965 and have not been used until now. Of the ten, 9 are marked B8B and one is marked B8K. The nine were made in Feb. 1958 and the other one was made in November of 1958. All were made in the Blackburn Mullard plant.All have the long grey plates with a halo getter supported by two posts. All have good markings as you can see.Now as to condition - These were tested on my Triplett 3444 lab tester. On this machine, average for a new 12ax7 is 1500mhos. These all test more than that on each triode. They all test between 1550 and 1650 so they all test as NOS on both triodes.These are used tubes - but it appears they were read more

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