SVETLANA KT88 Tetrode Tube (Pair)

The Svetlana KT88 tube is a glass-enclosed power tetrode tube. It is designed for power amplification. Its high dissipation, strict manufacturing tolerances, and meticulous processing give it increased reliability and superior sound performance.

The Svetlana KT88 is manufactured at the SVETLANA factory in Saint Petersburg, Russia, and is designed to be a direct replacement for any KT88, KT90, KT99, or 6550.

The new KT88 offers significantly improved sound performance: increased peak cathode emission thanks to new cathode materials; stable operation thanks to extended processing and aging; gold-plated grid; new three-plate anode; monoblock beam forming electrode; precise grid/screen alignment; improved vacuum processing; comprehensive static and audio amplifier testing before and after aging.