Tesla ECC802S - high grade 12AU7 3 matched pairs NOS

Offered for sale are three matched pairs of Czech Tesla ECC802S (a high grade low microphony tube) made in the 1970s. I bought them NOS NIB from Tubemonger in the last two years for use in my DAC. However, I have really not used any of these very fine tubes much at all except to try them out there so they are in nearly the same condition as I got them. I have found that I prefer NOS American blackplate tubes in my DAC. I am rating them 9/10 although they really still are essentially NOS and NIB.

These are not the successor Tesla JJ company's manufacture, but older military production from around 1975 from the original Tesla company. Here is a description from Tubemonger's website: "Brand new, MINT NOS NIB NOV-DEC 1975 Original TESLA Military Production ECC802S - Replica of the famous Telefunken ECC802S tall plate with flanges. Non-corrosive alloy pins. Made by Rožnov n.p. závod Vrchlabí. Produced in former Czechoslovakia (now Czech Republic). EC802S is a Premium version of 12AU7 ECC82 with low noise, and low microphonics. These tubes are very quiet and musical." For more details here is a link:

http://www.tubemonger.com/Tesla_NOT_JJ_MINT_NOS_NOV_1975_ECC802S_Tall_PLCZ_p/1199.htm