Feedforward-shunt Regulator & Tube First-Watt Current Amplifiers
Preamp Gain Stages: the Cathode Resistor. GAIN, TONES & THEORY!!! - YouTube
Vacuum Triodes
My Second Tube Amplifier
15KY8 - 12AX7 RCA Triode Pentode - Audio Tubes Valves - NOS - case of 100 Pcs | eBay
Chapter 4A Triode Vacuum Tubes.
Designing a Preamp with Parallel Triodes
How-does-vacuum-tube-12axxx-work - KLDGuitar tube guitar amp amp kits grill cloth and vinyl tolex
12AX7 - Wikipedia
Analysis
12AX7 - Wikipedia
Vacuum Tube Preamplifier Analysis and SPICE Simulation
Designing a Preamp with Parallel Triodes
Updated Tube Comparison Table
ECC83 - Plate Load Resistors, compression, Grid current limiting - Music Electronics Forum
Tools for fine tuning an amp.
Drawing Load Lines
Neither a pentode nor a Cathode Follower Be
Common-Cathode Amplifiers & Plate Followers
The '12AX7′ Tube - Effectrode
Designing Common-Cathode Triode Amplifiers
