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Vacuum Tube Voltmeters
by John F. Rider (1951)
John F. Rider was the leader in Repair manuals and was in WWI w/ the Signal Corp.
This is the best VTVM Book and is easy to understand and very helpful in using the meter and repair.
430 Pages
Interesting reading in PDF format
A very comprehensive book about VTVM\'s. Talks about specialized VTVM\'s for AC an RF use. In-depth discussions about VTVM design and usage.
Diode Vacuum Tube Voltmeters
Triode Vacuum Tube VoltmetersRectifier-Amplifier Vacuum Tube VoltmetersTuned Vacuum Tube VoltmetersAmplifier-Rectifier Vacuum Tube VoltmetersSlide-Back Vacuum Tubes VoltmetersVacuum Tube Voltmeters for DC Voltage, Current and Resistance MeasurementsProbes for RF and DCDesign and Construction of Vacuum Tube VoltmetersCalibration and Testing of Vacuum Tube VoltmetersApplications of Vacuum Tube VoltmetersCommercial Vacuum Tube VoltmetersMaintenance and repair of Vacuum Tube Voltmeters-91
Vacuum Tube Voltmeters
Author: John Rider
Published: 1951
Pages: 430:: PREFACE ::
As is evident, a general understanding of the basic operation of the diode and triode types of tubes is taken for granted, although a brief review of each is furnished. This attitude is taken on the grounds that the man who works with vacuum-tube voltmeters is at least familiar with the vacuum tube. The beginner who is first learning elementary facts about radio theory, has no need for data on vacuum-tube voltmeters. At the same time, the use of equations relating to vacuum-tube voltmeter opention, such as are usually expected by the engineer, are also omitted because of the practical laboratory work that was done during the preparation of this text. The engineer who is interested in one certain type of vacuum-tube voltmeter, will find that type not only described, but presented in completed form with full constants for all of the components. Furthermore, since this is a practical book, rather than a theoretical book, there is no particular need for formulae.:: CONTENTS ::
Fundamentals of Vacuum-Tube Voltmeters
Diode Vacuum-Tube Voltmeters
Triode Vacuum-Tube Voltmeters
Rectifier-Amplifier Vacuum-Tube Voltmeters
Tuned Vacuum-Tube Voltmeters
Amplifier-Rectifier Vacuum-Tube Voltmeters
Slide-Back Vacuum-Tube Voltmeters
Vacuum-Tube Voltmeters for D-C Voltage, Current, and Resistance Measurements
Probes For RF and DC
Design and Construction of Vacuum-Tube Voltmeters
Calibration and Testing of Vacuum-Tube Voltmeters
Applications of Vacuum-Tube Voltmeters
Commercial Vacuum-Tube Voltmeters
Maintenance and repair of Vacuum-Tube Voltmeters
Advantagesof the V-T Voltmeter ~~ A Simple D-C V-T Voltmeter
Simple A-C V-T Voltmeter ~~ Importance of Waveform—Peak, RMS, andAverage Values
V-T Volt meters Respond to Peak, Average, or RMS Values ~~ Balancing or“Bucking” Circuits
SECTION2
DIODE VACUUM-TUBE VOLT METERS
TheDiode 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-TVoltMeter
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
SECTION3
TRIODE VACUUM-TUBE VOLT METERS
PlateDetection V-T Volt meters ~~ Half-Wave Square-Law V-T Voltmeter
Half-Wave V-T Voltmeter Using 1N5-GT ~~ Full- Wave Square-Law V-TVoltmeter
Full-Wave V-T Voltmeter Using 1N5-GT ~~39. Ideal Square-Law V-TVoltmeter
Determining Bias for Square-Law Operation ~~ Peak Plate-RectificationV-T Voltmeter
Grid-Rectification V-T Voltmeter ~~ Grid-Rectification V-T VoltmeterUsing a 1G4-G Triode
The Self-Bias or Reflex V-T Voltmeter ~~ Self-Bias V-T Voltmeter Usinga 954 Acorn Tube
Balancing or Bucking Circuits ~~ Balancing Circuit Using VoltageDivider
Cathode Balancing Circuits ~~ Two-Tube Bridge Circuit
SECTION4
SLIDE-BACK VACUUM-TUBE VOLT METERS
TriodeSlide-Back V-T Voltmeter ~~ Error in Slide-Back V-T Voltmeter
Input Resistance of Slide-Back V-T Voltmeter ~~ Slide-Back V-TVoltmeter Measures Positive Peak
Preventing Injury to Meter ~~ Measurement of D-C Voltages withSlide-Back V-T Voltmeter
Input Circuit of Slide-Back V-T Volt meters ~~ Space-Charge Slide-BackV-T Voltmeter
Amplifier Type Slide-Back V-T Voltmeter
DiodeRectifier Used with D-C V-T Voltmeter ~~ Reflex Rectifier Used with D-C V-TVoltmeter
Rectifier-Amplifier ~~ Voltmeter Using a Voltage Amplifier V-T Voltmeter ~~ General Radio 726-AV-T Voltmeter
SECTION6
TUNED VACUUM-TUBE VOLT METERS
BasicTuned V-T Voltmeter ~~ Input Circuit and Probe Multiplier
Amplifier Design ~~ Use as a Comparison V-T Voltmeter ~~ A-F OutputConnection
SimpleAudio-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 ScaleProvides Linear Decibel Scale
Wide Range of Logarithmic Scale ~~ Types of Logarithmic V-T Voltmeter
Logarithmic Milliammeter ~~ Logarithmic V-T Voltmeter Using Logarithmic V-T Voltmeter ~~ Amplifier-RectifierType Logarithmic V-T Voltmeter
InputResistance and Grid Current in D-C V-T Volt meters ~~ Accuracy of D-C V-T Voltmeters
The Slide-Back V-T Voltmeter for D-C Voltage Measurements
A Simple Center-Zero D-C V-T Voltmeter ~~ Isolating Resistor—”SignalCircuit” Probe
Polarity Considerations in D-C V-T Volt meters ~~ Measuring VoltagesBetween Points Above Ground
Obtaining a Center-Zero Defection for Galvanometer Applications
A Single-Tube Degenerative V-T Voltmeter ~~ Balanced PushPull D-C V-TVoltmeter
The RCA Junior VoltOhmyst ~~ Resistance Measurements with the V-TVoltmeter—V-T Ohmmeters
Direct-Reading Vacuum-Tube Ohmmeter ~~ V-T Ohmmeter with ExternalVoltage 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-RangeMicroammeter Using Inverse response
Ultra-Sensitive Current Measurements
SECTION9
DESIGN AND CONSTRUCTION OF VACUUM- TUBEVOLT METERS
HighInput Impedance ~~ Wide Frequency Range ~~ Wide Voltage Range
Accuracy and Permanence of Calibration ~~ Type of Response—WaveformError
Stability and Protection against Overload ~~ Simplicity of Design andEase of Operation
Compensating for the Effect of Variations ~~ Reducing Errors at HighFrequencies
Bypassing Considerations ~~ Selection of Tubes ~~ Selection of theMeter
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
Choiceof Standards ~~ General Precautions ~~ Use of Tube-Tester Transformer
Variac or Other Variable Ratio Transformers ~~ Set-Up for A-CCalibration ~~ 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-TVolt meters at Ultra-High Frequencies
Measuring the Input Impedance of A-C V-T Volt meters ~~ V-T Voltmeteras a Comparison Voltmeter
Use of Log-Log Paper for Square-Law V-T Volt meters ~~ Checking aDecibel or Logarithmic Calibration
Calibration of D-C V-T Voltmeter
Measuring Grid Current and Input Resistance of D-C V-T Volt meters andV-T Ohmmeters
AmplifierStage 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 inModulation Indicators
V-T Volt meters in Wave Analyzers ~~ D-C Voltage, Current, andResistance Measurements
Commercial V-T Volt meters