SPICE Application Notes and White Papers
Differential equations and mechanics with LTspice
Solving SPICE Convergence Problems from Intusoft
Convert 2 port S-parameters into 4 port S-parameters
How to Quickly Obtain Spice Parameters for Diodes
Improved vacuum tube models for SPICE
Leakage Inductance from Wikipedia
Modeling a voltage controlled resistor
Microsim Application Notes (over 300 pages of SPICE modeling information)
File:Modeling Transmission Lines.pdf Modeling and Simulation of Nonlinear Transmission Lines
Improved SPICE Model of a Transmission Line from EDN
SPICE modeling for diodes from allaboutcircuits.com
SPICE modeling for crystals **WITH LTspice file**
SPICE Analysis of Crystal Oscillators
Power Electronics
Battery Model for Lead Acid Batteries
Improved Spice Models of Aluminum Electrolytic Capacitors for Inverter Applications
Simulate adaptive switching regulators using PSpice
Power Specialist's App Notebook from Intuisoft
Designing a (Single Ended Primary Inductance Converter) SEPIC Converter
How to Design a Transformer with Fractional Turns
Counting Turns on a Toroid Core