Analysis and Applications of the Capacitive Transformer (PDF Format) by Ramon Vargas
Basic DC Analysis
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 (external link)
Predicting Thermistor Resistance by Ron J
Transmitter Distance



Analogue Coupling Circuits
BJT Configurations
BJT Configurations 2
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 (in PDF format) by Ramon Vargas


Antenna Theory and Transmitting
Basic DC Theory
Basic AC Theory
Diode Charge Pump AM-FM Demodulators by Ramon Vargas
Heat Sinks for Transistors (external link to Kelsey Park School)
Ohms Law for AC Circuits
Measuring Input Output Impedance
Low Noise Design Techniques
Oscillations and Regenerative Amplification using Negative Resistance Devices by Ramon Vargas Transistor Modelling
Radio Calculations by Harry Lythall (external link)
Thevenin and Norton Networks
Tuned Circuits