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Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
    Kirt Blattenberger,


RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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Berkeley Nucleonics Academy RF Boot Camp - RF Cafe

Module 7 - Introduction to Solid-State Devices and Power Supplies
Navy Electricity and Electronics Training Series (NEETS)
Chapter 2:  Pages 2-51 through 2-54

Module 7 − Introduction to Solid−State Devices and Power Supplies

Pages i , 1−1, 1−11, 1−21, 1−31, 1−41, 2−1, 2−11, 2−21, 2−31, 2−41, 2−51, 3−1, 3−11, 3−21, 3−31, 3−41, 3−51, 4−1 to 4−10, 4−11, 4−21, 4−31, 4−41, 4−51, Index



A Transistor Gain TEST can be made using an ohmmeter and a simple test circuit. The principle behind this test lies in the fact that little or no current will flow in a transistor between emitter and collector until the emitter-base junction is forward biased.
A 10-to-1 resistance ratio in the test between meter readings indicates normal gain.


Transistor JUNCTION Resistance TEST can also be made using an ohmmeter by
measuring the base-emitter, base-collector, and collector-emitter forward and reverse resistances.



MICROELECTRONICS is a broad term used to describe the use of integrated circuits to miniaturize electronic equipment.
A PRINTED Circuit BOARD (PCB) is a flat, insulating surface upon which printed wiring and miniaturized components are connected in a predetermined design and attached to a common base.
MODULAR CircuitRY is an assembly technique in which printed circuit boards are stacked and connected together to form a module. This technique increases the packaging density of circuit components and results in a considerable reduction in the size of electronic equipment.
An INTEGRATED Circuit is a device that integrates (combines) both active components (transistors, diodes, etc.) and passive components (resistors, capacitors, etc.) of a complete electronic circuit in a single chip.

INTEGRATED Circuit - RF Cafe

The two basic types of ICs are the HYBRID and the MONOLITHIC.
In the MONOLITHIC IC, all elements (resistors, transistors, etc.) associated with the circuit are fabricated inseparably with a continuous piece of material (called the substrate).


In the HYBRID IC, the passive components (resistors, capacitors) are deposited onto a substrate (foundation) made of glass, ceramic, or other insulating material. Then the active components (diodes, transistors) are attached to the substrate and connected to the passive components using fine wire.

Answers to Questions Q1. Through Q42.

A1.   Transistor
A2.   Amplification.
A3.   Outward.
A4.   Point-contact.
A5.   Quality control.
A6.   Positive, more positive.
A7.   Because the N material on one side of the forward-biased junction is more heavily doped than the P-material.
A8.   The P or base section.
A9.   98 percent.
A10.   Holes.
A11.   The polarity of voltage applied to the PNP transistor is opposite of that applied to the NPN transistor
A12.   I B.
A13.   The base current loop and the collector current loop.
A14.   Amplifier.
A15.   Compensation for slight variations in transistor characteristics and changes in transistor conduction because of temperature variations.
A16.   The signals are opposite in polarity or 180 degrees out of phase with each other.
A17.   The polarity of the source voltage.
A18.   Base current bias or fixed bias.
A19.   Self-bias.
A20.   When it is necessary to prevent amplitude distortion.
A21.   The voltage-divider type.
A22.   Class A.
A23.   Cutoff.


A24.   The amount of bias and the amplitude of the input signal.
A25.   Class A.
A26.   Common emitter (CE), common base (CB), and common collector (CC).
A27.   Common emitter.
A28.   Base current (I B).
A29.   Alpha (a).
A30.   Common base.
A31.   IE.
A32.   Common collector.
A33.    - RF Cafe
A34.   The kind of transistor, the transistor's common applications, and mechanical data.
A35.   The number of junctions in the device, which in this case indicates a transistor.
A36.   Heat.
A37.   The substitution method.
A38.   The power must be removed from the circuit.
A39.   By the wide space between the collector lead and the other two leads (emitter and base).
A40.   Gain and junction resistance.
A41.   Normal gain.
A42.   a leaking transistor


NEETS Table of Contents

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