Homepage - RF Cafe
Webmaster: Kirt Blattenberger | KB3UON | Sitemap | ©1996-2014     Visit RF Cafe on
      Menu below is just a small sample of what is here!          Visit RF Cafe on Facebook Visit RF Cafe on Twitter Visit RF Cafe on LinkedIn
Custom Search
More than 10,000 searchable pages indexed.
•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

Navy Electricity and Electronics Training Series (NEETS)
Module 7—Introduction to Solid-State Devices and Power Supplies
Chapter 1:  Pages 1-41 through 1-47

Module 7—Introduction to Solid-State Devices and Power Supplies

Pages i - ix, 1-1 to 1-10, 1-11 to 1-20, 1-21 to 1-30, 1-31 to 1-40,
1-41 to 1-47, 2-1 to 2-10, 2-11 to 2-20, 2-21 to 2-30, 2-31 to 2-40,
2-41 to 2-50, 2-51 to 2-54, 3-1 to 3-10, 3-11 to 3-20, 3-21 to 3-30,
3-31 to 3-40, 3-41 to 3-50, 3-51 to 3-54, 4-1 to 4-10, 4-11 to 4-20,
4-21 to 4-30, 4-31 to 4-40, 4-41 to 4-50, 4-51 to 4-62, Index



FORWARD BIAS is an external voltage that is applied to a PN junction to reduce its barrier and, therefore, aid current flow through the junction. To accomplish this function, the external voltage is connected so that it opposes the electrostatic field of the junction.


REVERSE BIAS is an external voltage that is connected across a PN junction so that its voltage aids the junction and, thereby, offers a high resistance to the current flow through the junction.




The PN JUNCTION has a unique ability to offer very little resistance to current flow in the forward-bias direction, but maximum resistance to current flow when reverse biased. For this reason, the PN junction is commonly used as a diode to convert ac to dc.


The PN JUNCTION’S APPLICATION expands many different areas-from a simple voltage protection device to an amplifying diode. Two of the most commonly used applications for the PN junction are the SIGNAL DIODE (mixing, detecting, and switching signals) and the RECTIFYING DIODE (converting ac to dc).




The METALLIC RECTIFIER or dry-disc rectifier is a metal-to-semiconductor device that acts just like a diode in that it permits current to flow more readily in one direction than the other. Metallic rectifiers are used in many applications where a relatively large amount of power is required.


DIODE CHARACTERISTICS is the information supplied by manufacturers on different types of diodes, either in their manuals or on specification sheets.
DIODE RATINGS are the limiting value of operating conditions of a diode. Operation of the diode outside of its operating limits could damage the diode. Diodes are generally rated for: MAXIMUM AVERAGE FORWARD CURRENT, PEAK RECURRENT FORWARD CURRENT, MAXIMUM SURGE CURRENT, and PEAK REVERSE VOLTAGE.


The SEMICONDUCTOR IDENTIFICATION SYSTEM is an alphanumerical code used to distinguish one semiconductor from another. It is used for diodes, transistors, and many other special semiconductor devices.


DIODE MARKINGS are letters and symbols placed on the diode by manufacturers to distinguish one end of the diode from the other. In some cases, an unusual shape or the addition of color code bands is used to distinguish the cathode from the anode.




The STANDARD DIODE COLOR CODE SYSTEM serves two purposes when it is used: (1) it identifies the cathode end of the diode, and (2) it also serves to identify the diode by number.


DIODE MAINTENANCE is the procedures or methods used to keep a diode in good operating condition. To prevent diode damage, you should observe standard diode safety precautions and ensure that diodes are not subjected to heat, current overloads, and excessively high operating voltages.
TESTING A DIODE can be accomplished by using an ohmmeter, the substitution method, or a dynamic diode tester. The most convenient and quickest way of testing a diode is with an ohmmeter.






A1.   An electronic device that operates by virtue of the movement of electrons within a solid piece of semiconductor material.
A2.   It is the decrease in a semiconductor’s resistance as temperature rises.
A3.   Space systems, computers, and data processing equipment.
A4.   The electron tube requires filament or heater voltage, whereas the semiconductor device does not; consequently, no power input is spent by the semiconductor for conduction.
A5.   Anything that occupies space and has weight. Solid, liquid, and gas.
A6.   The atom.
A7.   Electrons-negative, protons-positive, and neutrons-neutral.
A8.   The valence shell.
A9.   Quanta.
A10.   A negatively charged atom having more than its normal amount of electrons.
A11.   The energy levels of an atom in a solid group together to form energy bands, whereas the isolated atom does not.
A12.   The width of the forbidden band.
A13.   The number of electrons in the valence shell.
A14.   Covalent bonding.


A15.   Electron flow and hole flow.
A16.   Intrinsic.
A17.   P-type crystal.
A18.   Electrons.
A19.   To convert alternating current into direct current.
A20.   Toward the arrow.
A21.   Point-contact.
A22.   Holes.
A23.   N-type material.
A24.   Depletion region.
A25.   Negative.
A26.   Forward.
A27.   Any device that draws current.

A28.   A pulsating dc voltage.
A29.   Metallic rectifier.
A30.   Forward bias.
A31.   A characteristic curve.
A32.   They are the limiting values of operating conditions outside which operations could cause diode damage.
A33.   A semiconductor.
A34.   1N368.
A35.   Heat.
A36.   The diode is open or has a high-forward resistance.


Introduction to Matter, Energy, and Direct Current, Introduction to Alternating Current and Transformers, Introduction to Circuit Protection, Control, and Measurement, Introduction to Electrical Conductors, Wiring Techniques, and Schematic Reading, Introduction to Generators and Motors, Introduction to Electronic Emission, Tubes, and Power Supplies, Introduction to Solid-State Devices and Power Supplies, Introduction to Amplifiers, Introduction to Wave-Generation and Wave-Shaping Circuits, Introduction to Wave Propagation, Transmission Lines, and Antennas, Microwave Principles, Modulation Principles, Introduction to Number Systems and Logic Circuits, Introduction to Microelectronics, Principles of Synchros, Servos, and Gyros, Introduction to Test Equipment, Radio-Frequency Communications Principles, Radar Principles, The Technician's Handbook, Master Glossary, Test Methods and Practices, Introduction to Digital Computers, Magnetic Recording, Introduction to Fiber Optics

A Disruptive Web Presence

Custom Search
Over 10,000 pages indexed! (none duped or pirated)

Read About RF Cafe
Webmaster: Kirt Blattenberger

RF Cafe Software

RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
frequency conversion & filters

RF & EE Symbols Word
RF Stencils for Visio

Product & Service Directory
Personally Selected Manufacturers
RF Cafe T-Shirts & Mugs

RF Cafe Software

Calculator Workbook
RF Workbench
Smith Chart™ for Visio
Smith Chart™ for Excel
Your RF Cafe Progenitor & Webmaster
Click here to read about RF CafeKirt Blattenberger... single-handedly redefining what an
                                 engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem! (Seize the Day!)

5CCG (5th MOB): My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website