An exact reproduction of the acclaimed Mullard ECC83 design, which was the tube found in most high-quality musical instrument and hi-fi amplifiers of the ‘50s, ‘60s and ‘70s. This tube has a complex mica design using four insulators that shock-mount the cathode to enhance stability and sound quality. Excellent all-around sonic character that adds vintage clarity and feel to any modern amp — a slightly rounder, deeper and all-around warmer tone with clarity. A lower-gain 12AX7 tube, it is a highly musical, harmonically rich and an excellent performer.
NOTE: due to the fact that these were manufactured for the original Groove Tube company, we are unable to offer any kind of warranty. All sales are final.