Vacuum tube - Wikipedia
A way of using feedback with triodes | GroupDIY Audio Forum
Using the Pentode/Triode Tube as the Amplifier/Phase Splitter.
Sneak Peek of the Upcoming Positive Feedback Article 'The Triode Lab 45 EVO Single-Ended-Triode Integrated Amplifier: The Evolution of the First Watt!' - Jeff's Place
Integrated Dual Triode As Single Stage: Vacuum Tube Amplifier Circuits: Gauss, Carl: 9781709201547: Amazon.com: Books
Two-Triode NFB Stages
The Valve Wizard
Feedback and fidelity part 2
Triodes are Still a Hot Item in Audio | Bench Talk
Two-Triode NFB Stages
More Super-Triode Ideas
Audio Innovations First Audio - Dagogo
Two-Triode NFB Stages
45 EVO (Integrated) — TRIODE LAB
Single-Ended Triode Amplifier
Two-Triode NFB Stages
Two-Triode NFB Stages
Fred's Vacuum Tube Amplifier Blog: The Basic Triode Gain Stage
Two-Triode NFB Stages
Amazon.com: Genalex Gold Lion E88CC Gold Pin Tube (Balanced Triodes) : Musical Instruments
Two-Triode NFB Stages
Triode Lab 45 EVO Single-Ended-Triode Integrated Amplifier - Positive Feedback
Local feedback between grid-cathode | Page 2 | diyAudio
