Available from GT AMPS

RCA 12AU7

The RCA 12AU7 Clear Top NOS/NIB is an American vacuum tube from the Black Plate/Clear Top series, highly regarded for its excellent linearity, low noise, and high reliability. It is known for its open and balanced sound, with natural mids, solid bass, and smooth highs, making it a go-to choice for preamplifiers, phase inverters, and high-quality Hi-Fi or tube equipment.

Reference price. Ask about availability and conditions.