This is our Gold Pin ECC803S V1 Option Retube Kit for the Carr Mercury. It uses a Long Plate Gold Pin ECC803S for V1, a Gold Pin ECC81 for V2, a Gold Pin ECC83S for V3. The ECC803S Long Plate tubes have cool vintage vibe with a great high end sparkle. The Gold Pin ECC803S's are very open and lush and when overdriven they have a very smooth and singing character that's less gritty than the non-Gold Pin versions.

The power tube is a premium tested JJ Electronic KT66. The JJ KT66's have that classic British flavor. They have a very thick and rich sound with lots of harmonic complexity and a wonderfully smooth breakup when driven into saturation.

Unlike other tube venders who charge for low noise tubes, all our tubes meet rigorous tests for low noise, microphonics and nine additional tests.

The video below shows both our preamp tube testing and power tube matching procedures here at Eurotubes which are second to none. We may not be the cheapest, but we are arguably the best.

Doing what other tube resellers say "can't be done" since 1998

Shipped and insured by Priority mail which is a 2 to 3 day delivery!