Pages 18, 20, and 22:

-6V, -10V, and -12V

should be

-6V, -10V, and -14V

Page 149:

C10-C12 should be 0.016uF

Please note the Amazon reviews, and see the reviews in QST magazine (December 2014, pg. 40) and Electric Radio magazine (October 2014, pgs. 38 and 39).

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ISBN 978-1-57074-089-3    Preface + 222 pgs.

Table of Contents

Preface                                                           ix

Introduction                                                     1

Electron Tubes: An Overview                         5

Tube Testers and Tube Troubles                  37

Service Testers                                             45

Old-time Parts: Meters, Transformers, etc.   55

A Deluxe Leakage and Emission Tester       65

An Adjustable Filament Supply                     79

Laboratory Testers                                        89

Designing High Voltage Power Supplies       97

A Re-Configurable High Voltage Supply     107

Breadboards and Breadboarding                121

A Dual High Voltage Regulator                   129

A Versatile Bias Generator                          145

Making Accurate Tube Measurements        153

Specialty Tubes                                           171

Construction Techniques                             183

A Couple of Example Projects                     203

High Voltage Safety                                     213

Bibliography                                                 215

Index                                                            219

The two photographs on page 73 are not identical ... look closely!

Welcome to 4EA Analysis! We offer electronic design services, as well as our popular book, Make Your Own Tube Testers and Electron Tube Equipment, available for $34.98 at


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