Amplifying With Vacuum Tubes: Circuit Design Guide for the Novice
Receiving Antennas for the Radio Amateur
How to Use, Calibrate, Repair and Upgrade Vacuum Tube Testers
Introduction to design with electron tubes
Transformers for Tube Amplifiers: HOW TO DESIGN, CONSTRUCT & USE POWER, OUTPUT & INTERSTAGE TRANSFORMERS AND CHOKES IN AUDIOPHILE AND GUITAR TUBE AMPLIFIERS
Designing Audio Power Amplifiers
Designing High-Fidelity Valve Preamps
RADIO HANDBOOK
Design of an Integrated Push-Pull Tube Amplifier Made Easy