Philco Starlight 6K11 - 6Q11 Triple Triode Electron Vacuum Tube

The NOS Philco Starlight 6K11 (also labeled 6Q11) is a compact multi-section electron tube combining a triode, pentode, and diode in a single envelope, designed for efficient space-saving performance in vintage radio and television circuits where stable operation, signal amplification, and detection are required.