Also on request matched quads. These are premium tubes for best HIFI amplifiers. Can be seen with a magnifying glass and the tube held a little bit sideways. The item "Very rare matched pair Telefunken ECC83 12AX7 with early 1960's tube" is in sale since Thursday, October 24, 2019. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Tubes & Tube Sockets".
The seller is "petras*music*shop" and is located in Lelystad. This item can be shipped worldwide.