PCB Resistance Reader Application

You can use this free program to read the values ​​of resistors, carbon film and metal used in electronic circuits.

This free program gives you the ability to:

1 - Read the resistors with the four color rings
2 - Read the resistors with the five color rings
And tolerance rates widely used for both types

Color interface Changed in line with your choice of colors of resistance to be read.

Comparability : 98/2000/XP/Vista/7
Extension: EXE
Size: 320.5 KB
Download : Click Here


This is another resistance reader according to color and tolerance.

Comparability : 98/2000/XP/Vista/7
Extension: EXE
Size: 212 KB
Download : Click Here

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Electronic components abbreviations

Here is a list of Electronic Component name abbreviations widely used in the electronics industry:

AC: Alternating Current
ADC: Analog To Digital Converter 
DAC: Digital To Analog Converter
PAM: Pulse Amplitude Modulation
RF: Radio Frequency
SW: Short Wave
CB: Citizens Band
IF: Intermediate Frequency
LF: low Frequency
STN: Signal-to-Noise
SNR: Signal –to-Noise Ratio 
LO: Local Oscillator
CCTV: Close Circuit Television
ETV: Educational TV
CMOS: Complementary MOS
FET: Field Effect Transistor
LED: Light Emitting Diode
SCR: Silicon Controlled Rectifier
DCTL: Direct Coupled: Transistor Logic 
DTL: Diode Transistor Logic
RTL: Resistor Transistor Logic
TTL: Transistor-Transistor Logic
DMM: Digital Multi Meter
DVM: Digital Voltmeter 
CRO: Cathode Ray Oscilloscope
DPDT: Double Pole Double: Throw
ADF: Automatic Direction Finder
ADP: Automatic Data Processing
AFC: Automatic Frequency Control
AGC: Automatic Gain Control
BMEWS: Ballistic Missile: Early Warning System

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Different components with the same name

There are a lot of electronic parts that have the same name, but the shape is different and in this post I will show you some of them illustrated by their pictures .

1- Diodes

2- Leds

3- Switches

 4- Transistors

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Manufacturer Symbols on the ICs

Sometimes you might read a manufacturer symbol on an Integrated Circuits ( eg. the below picture ) , Here are some of these symbols and their illustration .

AD - Analog Device
AY - General Instrument
CD - RCY
DM - Nantional Semiconductor
HD - Hitachi
I - Intel
MC - Motorola
MJ - Plessey
MK - Mostek
MP - Micro Power System
N - Signetics
RC - Raytheon
SL - Plessey
SN - Texas Instruments
UCN - SpragueX - Xicor
XR - Raytheon
Z - Zilog
ZN - Ferranti
uA - Texas Instruments
uPD - NEC

Source: ETI ELECTRONICS MANUAL - UK

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Electronic Symbols Part2

Here is Part 2 of the most used symbols in the Electronic Boards Designs beside it's commercial look and it's names .

Component Symbols (2)

Commercial Look Symbol Symbol Name Buffer Inverter (NOT) AND (2-input) NAND (2-input) OR (2-input) NOR (2-input) Integrated Circuits (IC) 7-Segment LED Display Loud Speaker Earphone Microphone Measuring Instrument Volt-Meter Amper-Meter LAMP Switch Battery Power Supply Solar Cell Fuse Bar Antenna Antenna (Aerial)    Ground    Chassis

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