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Rob's Electronics Site

Schematic symbols

Pasives

Resistor

Potentiometer

Resistor, Photo

Thermistor

VDR

or

Capacitor, Polarized

Coil, Air core

Coil, Iron Core

Coil Powdered Iron or Ferite Core

Fuse

 

Varistor

Crystal

 

Resistor, Trimer

Lamp

NC push button switch

NC push button switch

Switch DPDT

Switch

DPST

Switch

SPDT

Switch SPST

Switch, Thermal NC

Switch, Thermal NO

Switch NO   Switch, NC  

Transformer, Iron Core

Transformer, Center Taped

 

Transformer, Air Core

 

Autotransformer

 

Link Couplining Transformer

  

MOV

           

Transistors

Biopolar NPN

Bipolar PNP

NPN Darlington

PNP darlington

Phototransistor

JFET Nch

JFET Pch

MOSFET Nch

MOSFET Pch

MOSFET Nch Enhancment

MOSFET Pch Enhancment

Dual Gate MOSFET

     
         

Thyristors

Diac

SCR

Triac

UJT

 

Logic, Standard

AND

OR

NOT or INVERTER

NAND

NOR

XOR

XNOR

Buffer

RS Flip Flop

JK Flip Flop

RS Flip Flop w/ Clock

D Flip Flop

     

Logic, NEMA

AND

OR

NOT

NAND

NOR

XOR

XNOR Buffer    
         

Logic, ANSI

AND

OR

NOT or INVERTER

NAND

NOR

XOR

XNOR Buffer RS Flip Flop JK Flip Flop
         

 

 

 

Diodes

Diode

Diode, Photo Conductive or Photo Voltaic

Tunel

Varactor

Zener

LED

Constant Currant      

Vacume Tubes

Diode

Tetrode

Triode

Pentode

CRT with deflection plates
CRT with magnetic defection        

Transducers

Mic

Speaker

Piezo

Thermocouple RTD
Load cell      
         
         

 

Misculaniuos

Arieal, General

Arial, Loop

Arial, Folded diepole

Battery

Ground

Earth Ground

Ground, Special

Neon lamp

Node conection

Node Source

Relay

Stereo Jack

Wire/Trace, no conection

Wire/Trace, conected

 
         

 

 

 

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Created: 02/01/03
Updated: __/__/__
Checked: __/__/__

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