New: Sophia Electric Blue Glass KT66 tubes

KT66 was the European answer to the super popular North American 6L6. Sophia Electric’s design utilized the virtue of vintage KT66 and incorporated modern design and material to re-make a great-sounding tube model. Sophia Electric KT66 tube is fully interchangeable with vintage British KT66 tube and will replace 6L6 in most amps. It also can replace El34 in an El34 amp with a self-biased design. Note El34 tube amp needs to connect pin 1 and pin 8 when using with 6L6 and KT66. Check with your amp maker when using this tube in an El34 amplifier. Pricing: Grade A (top 10%): $175 per tube with a 30-day warranty, $25 extra for a one-year warranty. Grade B (top 25%): $150 per tube with a 30-day warranty, $25 extra for a one-year warranty. When you order 2 tubes, we will ship you 2 matched tubes. When you order 4 tubes, we will ship you 4 matched tubes. When you order 8 tubes, we will ship you 2 matched quads. Copyright@2025 Sophia Electric, Inc. All rights reserved.