Telefunken KT88-TK Black Diamond Series Vacuum Tubes

This matched pair of Telefunken KT88-TK Black Diamond Series Vacuum Tubes is ideal for use in guitar amplifiers and hi-fi power amps in homes, studios, and live stage applications. For personal enjoyment or commercial recording, they grant the signature KT88 midrange with the added benefit of expanded low and high frequencies. Among the largest in their class, these beam-power tetrode tubes deliver high power and low distortion while handling plate voltages up to 800V. Depending on the circuit type, they can be used as beam-power tetrodes or output-beam pentodes.