by Lewis Loflin
Phone: 276-669-0565
E-Mail: userper@sullivan-county.com

E-mail me with any questions.

General Science

• Conductors and Insulators
• Properties of Metals and Periodic Table
• Lewis Dot Diagrams
• Valence Electrons
• Noble Gases
• Electroplating -- how it works.
• Experiments in Electrochemistry
• Electrochemistry Dictionary
• Electrochemical Cells
• Battery, single cell
• Electromagnetic Spectrum

  Household Electricity

• Electric Shock
• Household Lighting
• Fluorescent Lighting
• Household Electric Circuits
• Ground Fault Interrupter
• Fuses, Circuit Breakers, and Grounds
• Power Generation
• AC Motors
• 1200 Watt Lamp Dimmer

  Auto Battery, batteries, alternators, charging systems

• Auto Charging System
• Lead Acid Battery
• Understanding Alternators -- an Overview
• Just what is an Alternator??
• Alternator and Generator Comparison for Wind Power
• Auto Battery and Problems
• Honda Prelude Altenator PDF

  Caps, Coils,

• Frequency
• Voltages, sin waves, and RMS
• Inductors, Caps, and Reactance
• Basic Capacitor
• Inductors
• Induced voltage in a coil
• AC and Capacitors
• AC and Inductors

  Diodes

• Dopants for Semiconductors
• Diode types and construction
• Diode Uses
• Light Emitting Diodes
• Germanium Diodes

  Power Supplies

• Fuses
• Auto Circuit Breakers
• Transformers
• Filter Capacitor and Ripple
• Voltage Doubler
• Switching PS
• Full Wave Power Supply
• Half-Wave Power Supply
• Capacitor Discharge Power Supplies
• Magnetic Vibrator PS picture
• My homebuilt inverter picture
• Full Wave Power Supply picture
• Inverter Test picture

  Components

• Electronic Components
• Potentiometers and Variable Resistors
• Relays, Operation of
• Resistors
• Solid State Relays
• Resistors and AC

  Sensors

• Explanation of Hall Sensors and Uses
• Hall Effect
• CdS Photocells
• CdS vs Silicon

  General Electronics

• Ohms Law
• DC Theory
• Technical Glossery
• Block Diagrams
• Oscilloscope Basics
• How a Vacuum Tube Works
• Test and Measurements
• Intermediate Electronics off site
• Electronic Projects off site

• 2 watt amplifier
• Amplifier
• Audio Output Waveforms
• Basic Car Audio Circuits
• BJT Transistors
• Day Night Light Detection
• FETs
• Electronic Flashers
• Car Sterio Head Unit
• IR Detection
• Optoisolators
• SCR Speed Control
• SK4828 Amp
• Various Transistor Throttles
• TLC549 Amp
• Home Built X-Ray Machine
• Thermister and Wheatstone Bridge DOC file

  Pictures only

• Solid State Temp Controller
• AC Generator
• AC Motor
• Commutator
• DC Motor Current
• DC Motor Current 2
• DC Motor Magnetic Field
• DC Motor 1
• DC Motor 2
• Motor Generator
• AC Motor Generator
• 18 Volt Power Supply
• Car Sterio Hookup
• Car Sterio Hookup
• O'Scope Block Diagram
• Speakers, Capacitor
• Speakers, Inductor
• Relays in Car Sterio
• Sample Resistors
• Infrared Sensors
• PB Switch, internals
• PB Switch
• Slide Switch
• Slide Switch, internals
• Lighted Rocker Switches
• LM350 PS