Elekit TU-8900 300B/2A3 Single-Ended Power Amplifier Kit. The Elekit TU-8900 is a single-ended power amplifier kit that allows audio enthusiasts to enjoy two types of directly heated triode tubes — the 300B and 2A3 — in a single unit.
Elekit TU-8900 300B/2A3 Single-Ended Power Amplifier Kit. The Elekit TU-8900 is a single-ended power amplifier kit that allows audio enthusiasts to enjoy two types of directly heated triode tubes — the 300B and 2A3 — in a single unit.