Article Index
Latest Articles
Analysis
Analysis and Applications of the Capacitive Transformer by Ramon Vargas
DC Analysis Examples
BJT Biasing Techniques (External link)
Boolean Algebra Examples (External link)
Colpitts Oscillator
Frequency Response of Amplifiers
James-Baxandall Passive Tone Control Network by Ramon Vargas
Predicting Thermistor Resistance by Ron J
Transmitter Distance
BJT Configurations
BJT Configurations 2
Design of A Regenerative Receiver for Short Wave Part 1 by Ramon Vargas
Design of A Regenerative Receiver for Short Wave Part 2 by Ramon Vargas
FET Amplifiers
FET Configurations
BJT Bias Circuits
Negative Feedback in amplifiers by Lazar Panic
Transistor as a Switch
Op-amp Tutorial by Tony Van Roon (external link)
Over Voltage Protection
Removing "DC thump" from Audio Circuits
Switch Contact De-Bouncing
555 Timer Tutorial by Tony Van Roon (external link)
Unregulated Power Supply Design
Wien Bridge Oscillator Design by Ramon Vargas
Q Multiplication in the Wien Bridge Oscillator by Ramon Vargas
Voltage Comparator and Q Multiplier make a stable Sine Wave Oscillator by Ramon Vargas
Stereo Cross Feed Network for Headphones (PDF format) by Peter Lehmann
Stereo Cross Feed Network for Headphones (MS Word format) by Peter Lehmann
Basic DC Theory
AC Theory
BJT Hybrid Model
BJT Re Model
Computing RF Choke Effects in the Loop Gain of an Armstrong-type SW Regenerative Receiver by Ramon Vargas
Diode Charge Pump AM-FM Demodulators by Ramon Vargas
Heat Sinks for Transistors (external link to Kelsey Park School)
Measuring Input Output Impedance
Low Noise Design Techniques
Optimization of the Signal Voltage of a Selectivity Enhanced Germanium Detector by Ramon Vargas
Ohms Law for AC Circuits
Oscillations and Regenerative Amplification using Negative Resistance Devices by Ramon Vargas
Radio Calculations by Harry Lythall (external link)
Reduction of Detector Diode Losses in a Crystal Radio by Ramon Vargas
RC Phase Shift Oscillators by Ramon Vargas
Thevenin and Norton Networks
Tuned Circuits
Thevenin to Norton Conversion
DC Analysis Examples
BJT Biasing Techniques (External link)
Boolean Algebra Examples (External link)
Colpitts Oscillator
Frequency Response of Amplifiers
James-Baxandall Passive Tone Control Network by Ramon Vargas
Predicting Thermistor Resistance by Ron J
Transmitter Distance
Design
Analogue Coupling CircuitsBJT Configurations
BJT Configurations 2
Design of A Regenerative Receiver for Short Wave Part 1 by Ramon Vargas
Design of A Regenerative Receiver for Short Wave Part 2 by Ramon Vargas
FET Amplifiers
FET Configurations
Negative Feedback in amplifiers by Lazar Panic
Transistor as a Switch
Op-amp Tutorial by Tony Van Roon (external link)
Over Voltage Protection
Removing "DC thump" from Audio Circuits
Switch Contact De-Bouncing
555 Timer Tutorial by Tony Van Roon (external link)
Unregulated Power Supply Design
Wien Bridge Oscillator Design by Ramon Vargas
Q Multiplication in the Wien Bridge Oscillator by Ramon Vargas
Voltage Comparator and Q Multiplier make a stable Sine Wave Oscillator by Ramon Vargas
Stereo Cross Feed Network for Headphones (PDF format) by Peter Lehmann
Stereo Cross Feed Network for Headphones (MS Word format) by Peter Lehmann
Theory
Antenna TheoryBasic DC Theory
AC Theory
BJT Hybrid Model
BJT Re Model
Computing RF Choke Effects in the Loop Gain of an Armstrong-type SW Regenerative Receiver by Ramon Vargas
Diode Charge Pump AM-FM Demodulators by Ramon Vargas
Heat Sinks for Transistors (external link to Kelsey Park School)
Measuring Input Output Impedance
Low Noise Design Techniques
Optimization of the Signal Voltage of a Selectivity Enhanced Germanium Detector by Ramon Vargas
Ohms Law for AC Circuits
Oscillations and Regenerative Amplification using Negative Resistance Devices by Ramon Vargas
Radio Calculations by Harry Lythall (external link)
Reduction of Detector Diode Losses in a Crystal Radio by Ramon Vargas
RC Phase Shift Oscillators by Ramon Vargas
Thevenin and Norton Networks
Tuned Circuits
Thevenin to Norton Conversion