#### Heathkit - How To Understand and Use Your VTVM - EF-1

How To Understand And Use Your Vacuum Tube Voltmeter, part of the Technical Application Series (September 1961). This 89 page digital book in Adobe Acrobat .pdf format explains the basic theory of electricity and electronic components, including, among other topics, current, voltage, resistance and impedance, Ohms Law, schematics, filters, transformers, power supplies, crystal and diode rectifiers, triode amplifiers, and voltage dividers. These and other topics are combined in a thorough explanation of VTVM circuitry followed by instructions in the maintenance and troubleshooting of a VTVM. The principles and procedures of troubleshooting, equipment checking, and alignment with a VTVM are also discussed. Lastly, both common and unusual examples of VTVM uses in television, ham radio, AM and FM radio, Hi-Fi and other areas are given.

The many experiments spaced through the text have been designed to clarify and to give concrete demonstrations of the basic principles of electricity, to familiarize you with VTVM theory, design, and use, and to introduce you to the fascinating world of electronics.

One of a series of Learn-by-Doing Technical Application Kits prepared especially for Individual Home Study or Group Classroom Instruction. The book is divided into six parts:

PART ONE - An Introduction To The VTVM
Preliminary Operation
General Principles
Ohms Measurements
DC Voltage Measurements
AC Voltage Measurements
Safety

PART TWO - Power Supply Assembly
Specifications
Circuit Description
Construction Notes
Parts List
Proper Soldering Techniques
Step-By-Step Procedure
Step-By-Step Assembly
Power Supply Test
In Case Of Difficulty
Service Information
Warranty
Experiments

PART THREE - The Basic Principles Of Electricity
Chapter 1 - Electricity-The Flow Of Electrons
Experiments
Chapter 2 - Capacitors
Experiments
Chapter 3 - Inductance And Impedance
Experiments
Chapter 4 - Transformers, Power Supplies And Schematics
Experiments
Conclusion

PART FOUR - VTVM Theory
Chapter 1 - VOM Theory
Chapter 2 - Triode Amplificiation
Chapter 3 - The Basic Circuit Of A VTVM
Chapter 4 - Refinements In The VTVM Circuit

PART FIVE - VTVM Maintenance
Chapter 1 - Care Of The VTVM
Chapter 2 - Troubleshooting
Conclusion

PART SIX - VTVM Applications
Chapter 1 - Some Basic Uses Of The VTVM
Chapter 2 - Special Applications
Conclusion

VTVM Maintenance Rules

The text is designed to help you thoroughly understand a fundamental electronic instrument, the Vacuum Tube Voltmeter. No previous electrical knowledge on your part has been taken for granted. This book and a VTVM are all you need to get started in electronics.

If you are just getting started in electronics or thinking about getting started, this book should be quite helpful, not only in understanding the VTVM, which is important enough in itself to the novice, but also in understanding basic circuitry and circuit parts, the building blocks of the age of electronics.

With the knowledge and experience gained from this Technical Applications book, you should be able, with your VTVM, to troubleshoot and repair common household and shop circuitry, pursue a hobby in electronics, and possibly do some professional repair work. You will use your VTVM to verify for yourself the basic electrical laws, thereby learning-by-doing and probably enjoying yourself in the process.

The original book was scanned and converted into this digital file in Adobe Acrobat .pdf format. In order to view this file you will need to have Adobe Acrobat Reader installed on your computer.
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