Calculators / Resources

Optics
 Optical Luminance Conversions
f Number Calculator
f Number to Numerical Aperture Conversion
Black Body Emission

Robotics
Delta Manipulator Calculator - in Progress  
 Robot Arm Torque Calculator
 Drone Flight Time Calculator
Stewart Platform (Hexapod) Calculator
 Drone Flight Time Calculator

Definitions
* The 'Definitions' Pages were damaged.  Working on repairing them.
AC
DC
RF/Microwave
Optics
Robotics
Drones
 

Calculators / Resources

General
PI Calculation - coming soon, yet another PI Calculator (C#)
Energy Conversions
Frequency to Wavelength
Temperature Conversions
Wood BTU Index
Pitch to Frequency

RF / Microwave / Semiconductors
RF Conversions Calculator
Pi Attenuator Calculator
T Attenuator Calculator
Microstrip Transmission Line Characteristic Impedance
Coplanar Waveguide Line Calculator
Butterworth Filters
Parallel Plate Capacitors
Planar Spiral Inductor Calculator
Wilkinson Power Divider Calculator
Directional Coupler Calculator
Network Parameter Conversions

Rectangular Spiral Model Extractor
Varactor Diode Model
Doide Model Extractor - in progress
MESFET Model Extractor
HBT Model Extractor