TUBE RADIO SERVICE WITH VACUUM TUBE VOLTMETERS VTVMS

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Are you considering collecting, maintaining, repairing or restoring

VINTAGE ANTIQUE TUBE RADIOS?

Are you interested in using the types of test equipment ORIGINALLY DESIGNED to do such work?

Do you own or are you considering to purchase VINTAGE ELECTRONIC TEST EQUIPMENT?

Are you curious how your vintage VTVM (Vacuum Tube Volt Meter) works and how to maintain it?

IF YOU HAVE ANSWERED YES TO ANY OF THE QUESTIONS ABOVE
then
I HAVE JUST THE PRODUCT FOR YOU!!

Now is your chance to add this invaluable tool to your tube radio servicing arsenal!

THE BOTTOM LINE FOR...

OPERATING & MAINTAINING & CALIBRATING

and MASTERING VTVM'S

on CD Rom

Based on that classic by the Father of Radio Servicing
VACUUM TUBE VOLT METERS by JOHN F. RIDER

THE ORIGINAL AND UNDISPUTED FINAL WORD FOR VTVM'S

SECTION 1
FUNDAMENTALS OF VACUUM-TUBE VOLTMETER

Advantages of the V-T Voltmeter ~~ A Simple D-C V-T Voltmeter
Simple A-C V-T Voltmeter ~~ Importance of Waveform—Peak, RMS, and Average Values
V-T Volt meters Respond to Peak, Average, or RMS Values ~~ Balancing or “Bucking” Circuits

SECTION 2
DIODE VACUUM-TUBE VOLT METERS

The Diode Characteristic ~~ Diode Rectifier Operation ~~ Simple Diode V-T Voltmeter
Peak Diode V-T Voltmeter—Series Type ~~ Peak Diode Voltmeter—Shunt Type
Shunt-Type Diode Voltmeter Circuit ~~ High-Voltage Shunt-Type Peak V-T Volt­Meter
Values of R and C for Peak V-T Volt meters
“Con­tact Potential” Effect in Diode V-T Volt meters
Slide-Back Diode V-T Voltmeter for Positive Peak Voltages
Slide-Back Diode V-T Voltmeter for Negative Peak Voltages
Slide-Back Diode V-T Voltmeter for Trough Voltages

SECTION 3
TRIODE VACUUM-TUBE VOLT METERS

Plate Detection V-T Volt meters ~~ Half-Wave Square-Law V-T Volt­meter
Half-Wave V-T Voltmeter Using 1N5-GT ~~ Full- Wave Square-Law V-T Voltmeter
Full-Wave V-T Voltmeter Using 1N5-GT ~~39. Ideal Square-Law V-T Voltmeter
Determining Bias for Square-Law Operation ~~ Peak Plate-Rectification V-T Voltmeter
Grid-Rectification V-T Voltmeter ~~ Grid-Rectification V-T Voltmeter Using a 1G4-G Triode
The Self-Bias or Reflex V-T Voltmeter ~~ Self-Bias V-T Voltmeter Using a 954 Acorn Tube
Balancing or Bucking Circuits ~~ Balancing Circuit Using Voltage Divider
Cathode Balancing Circuits ~~ Two-Tube Bridge Circuit

SECTION 4
SLIDE-BACK VACUUM-TUBE VOLT METERS

Triode Slide-Back V-T Voltmeter ~~ Error in Slide-Back V-T Voltmeter
Input Resistance of Slide-Back V-T Voltmeter ~~ Slide-Back V-T Voltmeter Measures Positive Peak
Pre­venting Injury to Meter ~~ Measurement of D-C Voltages with Slide-Back V-T Voltmeter
Input Circuit of Slide-Back V-T Volt meters ~~ Space-Charge Slide-Back V-T Voltmeter
Amplifier Type Slide-Back V-T Voltmeter

SECTION 5
RECTIFIER-AMPLIFIER VACUUM-TUBE VOLT­METERS

Diode Rectifier Used with D-C V-T Voltmeter ~~ Reflex Rectifier Used with D-C V-T Voltmeter
Rectifier-Amplifier ~~ Voltmeter Using a Voltage Divider
Rectifier—De­generative Amplifier V-T Voltmeter ~~ General Radio 726-A V-T Voltmeter

SECTION 6
TUNED VACUUM-TUBE VOLT METERS

Basic Tuned V-T Voltmeter ~~ Input Circuit and Probe Multi­plier
Amplifier Design ~~ Use as a Comparison V-T Volt­meter ~~ A-F Output Connection

SECTION 7
AUDIO-FREQUENCY AND LOGARITHMIC VACUUM-TUBE VOLT METERS

Simple Audio-Frequency V-T Voltmeter ~~ High-Sensitivity A-F V-T Voltmeter
Tele-Vision Amplifier V-T Voltmeter ~~ Logarithmic V-T Volt meters
Comparison of Linear and Logarithmic Scale ~~ Logarithmic Voltage Scale Provides Linear Decibel Scale
Wide Range of Logarithmic Scale ~~ Types of Logarithmic V-T Voltmeter
Logarithmic Milliammeter ~~ Logarithmic V-T Voltmeter Using Logarithmic Milliammeter
Controlled-Amplifier Logarithmic V-T Voltmeter ~~ Amplifier-Rectifier Type Logarithmic V-T Voltmeter

SECTION 8
VACUUM-TUBE VOLT METERS FOR D-C VOLT­AGE, CURRENT, AND RESISTANCE MEASUREMENTS

Input Resistance and Grid Current in D-C V-T Volt meters ~~ Accuracy of D-C V-T Volt meters
The Slide-Back V-T Volt­meter for D-C Voltage Measurements
A Simple Center-Zero D-C V-T Voltmeter ~~ Isolating Resistor—”Signal Circuit” Probe
Polarity Considerations in D-C V-T Volt meters ~~ Measuring Voltages Between Points Above Ground
Obtaining a Center-Zero Defection for Galvanometer Applications
A Single-Tube Degenerative V-T Voltmeter ~~ Balanced Push­Pull D-C V-T Voltmeter
The RCA Junior VoltOhmyst ~~ Resistance Measurements with the V-T Voltmeter—V-T Ohmmeters
Direct-Reading Vacuum-Tube Ohmmeter ~~ V-T Ohm­meter with External Voltage Supply
Slide-Back V-T Ohm­meter for High Resistances
Sensitive Current Measurements with the D-C V-T Voltmeter
A Degenerative D-C Amplifier Used in V-T Microammeters ~~ A Multi-Range Microammeter Using Inverse Feedback
Ultra-Sensitive Current Measurements

SECTION 9
DESIGN AND CONSTRUCTION OF VACUUM- TUBE VOLT METERS

High Input Impedance ~~ Wide Frequency Range ~~ Wide Voltage Range
Accuracy and Permanence of Calibration ~~ Type of Response—Waveform Error
Stability and Protection against Overload ~~ Simplicity of Design and Ease of Operation
Compensating for the Effect of Variations ~~ Reducing Errors at High Frequencies
Bypassing Considerations ~~ Selection of Tubes ~~ Selection of the Meter
Resistor Considerations ~~ Grid-Circuit Considerations
Reduction of Leakage in D-C V-T Volt meters and V-T Ohmmeters
Power Supply Considerations ~~ completely Regulated Voltage Supply
Ex­tending the Voltage Range of A-C V-T Volt meters
Extending the Voltage Range of D-C V-T Voltmeter
Constructional Notes

SECTION 10
CALIBRATION AND TESTING OF V-T VOLT METERS

Choice of Standards ~~ General Precautions ~~ Use of Tube-Tester Transformer
Variac or Other Variable Ratio Transformers ~~ Set-Up for A-C Calibration ~~ Use of Decade Voltage Divider
Extra Condensers for 60-cycle Calibration ~~ Waveform Considerations
Consistency Check ~~ Use of Outer Linear Scale
Correction Curve for Slide-Back V-T Volt meters ~~ Calibration of V-T Volt meters at Ultra-High Frequencies
Measuring the Input Impedance of A-C V-T Volt meters ~~ V-T Voltmeter as a Comparison Volt­meter
Use of Log-Log Paper for Square-Law V-T Volt meters ~~ Checking a Decibel or Logarithmic Calibration
Calibration of D-C V-T Voltmeter
Measuring Grid Current and Input Resistance of D-C V-T Volt meters and V-T Ohmmeters

SECTION 11
APPLICATIONS OF V-T VOLT METERS

Amplifier Stage Measurements ~~ Signal Tracing—Checking Amplifier and Receiver Operation
Measuring Transformer Turn Ratio ~~ Power-Supply Measurements
Low-Frequency Impedance Measurements ~~ Measuring Inductance, Capacitance, and Resistance
V-T Voltmeter for Measuring Alternating Currents ~~ V-T Volt meters in Modulation Indicators
V-T Volt meters in Wave Analyzers ~~ D-C Voltage, Current, and Resistance Measurements
Commercial V-T Volt meters

This book had been enhanced and resized from glass masters of the original and is digitally enhanced for greater usability!

THIS DIGITAL BOOK WILL WALK YOU THROUGH THE THEORY BEHIND AND THE SERVICING TECHNIQUES FOR USING VACUUM TUBE VOLT METERS IN THE REPAIR OF TUBE RADIO RECEIVERS AND IS THE KIND OF REFINED TECHNICAL ADVICE THAT CANNOT BE FOUND IN MORE MODERN SERVICE BOOKS!

You get detailed diagrams...
You get detailed instruction...
And... You get more theory and tips and tricks than you can ever possibly use!

I'm so confident you will find THE BOTTOM LINE for MASTERING VTVM'S a valuable asset to your restoration and maintenance efforts that if you don't.......YOU PAY ME NOTHING!

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