For sale is a NEW Matched Quad (4) Electro-Harmonix 6550/KT88 tubes. Are matched within 10% of plate current. Don't settle for sets matched at lower voltages - they are unlikely to be matched in your amplifier.
Welcome to Tube Maze Store. Here you will find a wide selection of NOS and reissue tubes. All tubes are also tested for noise and microphonics. The item "Matched Quad (4) Electro-Harmonix 6550/KT88 tubes Russia" is in sale since Wednesday, January 29, 2020. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Tubes & Tube Sockets".
The seller is "tubemazestore" and is located in Melrose, Florida. This item can be shipped worldwide.