Circuits and Signal Processors

A Radio

Digital “Mastermind Game ”

Field Effect Transistors

ADC (Analog to Digital Converter)

Precision Dual Slope ADC

*Digital Signal Storage

Analog Signal Storage

A to D to A Converter

Spectrum Analyzer

*A Digital Readout Clock

*Digital Echo Box

*Digital Chess Clock

Lamp Ping-Pong Scorer

Digital Adder

TI-04: The Power of an Abacus in the Palm of Your Hand

Digital Tachometer

FM Transmitter

*A Digital Combination Door Lock

Radio Controlled Servo

Decade Random Number Generators: The One Armed Bandit

Serial Communication System

Frequency Multiplier and Data Acquisition System

Very Low Frequency Radio Receiver

Proximity Alarm

Simon Says

AM Transmitter

Event Counter

Glitch Counter

Electronic Instruments, Measuring and Control Devices

Semiconductor Temperature Sensors

Logic to Identify Particles in a High Energy Physics Mock-up Experiment

Traffic Light Control Circuit with Model of Intersection

*Digital Clock or Stopwatch

Digital Voltmeter

Digital Capacitance Meter

Voice and Music

Electric Guitar and “Fuzz Phase "

An Octave Pedal for a Guitar

LED Audio Voltage Meter

Voice Record/Playback

Simple VCO Keyboard

Laser Microphone

Voice Transmission by Light Waves

AM Radio Transmission and Reception

Audio Information Recording and Playback

Voice Annunciator

Synthesizer

Multi-key Square Wave Synthesizer

Visual Interpretation of Music with Spectrum Analyzer

Phase-shift Pedal

Visual Display of Music

The Vocorder

The Electronic Synthesizer and the Major C Pentatonic Scale

Audio-Optical Link

Optically Controlled Music Box

Theramin

Digital Delay Processor

Seven Band Graphic Equalizer

Musical Light Show

Sound Meter

Use of Electronic Models to Understand Physical Systems

Analog Computer for Forced Damped Harmonic Oscillator

Weakly Coupled LC Oscillators

Strongly Coupled LC Oscillators

Multiple Coupled Oscillators

Analog Computer for the Van der Pol Oscillator

Magnetic Flux in Matter

Silicon Oscillator

Medical Electronics

EKG Heart Monitor

Brain Wave Monitor

Blood Pressure Pulse Velocity

A Real-Time Monitor of Heart Rate Variability

Measuring Things

Digital Thermometer

Light Intensity Display for UV/Ozone Monitoring

Thermal Conductivity of Gases by the Hot Wire Method

Measurement of the Dielectric Constant of Water

Friction of Bicycle Wheel

Star Tracker

A Magnetometer for Small Fields

Magnetic Flux in Matter

Thermal Noise of an Oscillator

Light

IR Motion Detector

Integrating Photometer

Clorox Laser

Optical Communications Link

Solar Powered Rechargable Battery System and Yard Light

Photon Flux from the Sky

Optical Density Monitor

Ellipsometry System

Laser Scanner

Mechanics

Electromagnetic Pendulum

Comparison of Simple with Rigid Bar Conical Pendula

Precession of the Elliptical Pendulum

Measure Motion of a Silicon Torsional Oscillators

A Stepper Motor

Semiconductors

Band Gap Energy in Silicon from the Temperature Dependence of Transistor Current

T Dependence of Resistivity: Energies of the Band Gap and Acceptors of p-type Silicon

Hall Effect in p- and n-type : Sign and density of Charge Carriers

Photo-injection of Carriers: Mobility and Lifetime of Carriers in p-type Silicon

Properties of a Solar Collector Foil

Superconductors Ferromagnetics and Fundamental Noise

High Temperature Superconductivity: Meissner Effect, Critical Temperature and Current

Curie Point for Ferrite from the Temperature Dependence of a Ferrite Inductor

Boltzmann’s Constant from the Temperature Dependence of Noise from a Resistor

Sheet Resistance of Thin Gold Films

Chaotic Phenomena in Non-Linear Electrical Systems

                   Tri-linear Active Circuit Element (Moon, “Chaotic Vibrations,” Wiley (1987) pp 109-110) 

                   Forced Chaotic Oscillations in Circuits Containing a Non-linear Inductor (Moon, page 140)

Chaos in Forced Oscillations of a Resonant Circuit Containing a Diode

Spontaneous Chaotic Oscillations in Circuits Containing Tunnel Diodes

Strange Attractors and Chaos in Non-linear Oscillating Circuits

Chaotic Phenomena in Dripping Water

Chaotic Response of a Nonlinear Oscillator with a Tri-linear Element

Electromagnetic Waves and Fields

                 1 GHz Electromagnetic Waves Radiated by Electric Dipole and Magnetic Dipole Antennas

Generation and Properties of Microwaves and their Transmission through Waveguides

Pulses and waves on Coaxial Cables

Electrostatic Potential Distribution measurement using an Electrolytic Bath

Magnetic Propulsion Rail Gun

Magnetic Field Distortion Detector

Shock Generator

               Miscellaneous

The Weenie Wagon and the Tube of Doom

Remote Controlled Car

Tutbot: A Robot, A Journey, A Dream

Global Positioning Receiver