VK5AJL - Circuit Symbols.VK5AJL Home page.Project index.Information index.

SYMBOLS - SCHEMATIC
AS USED ON THIS SITE

These symbols are not only relevant to radio but are generally used in electronics.

Resistor

Resistor
(alternatives)

Capacitor - non polarised.

Capacitor

Polarised capacitor

Polarised capacitor
(alternatives)

Air inductor

Air Inductor
Often used for any L.

Inductor with core

Inductor with core

Relay (1 contact)

Relay (1 contact)

Terminal

Circuit terminal

Meter

Meter

Antenna

Antenna

Ground connection.

Ground or Earth connection

Diode.

Diode.

Light Emitting diode.

Light Emitting diode

PNP transistor

PNP bipolar transistor

NPN Transistor

NPN bipolar transistor

P channel FET

P channel
Field Effect Transistor
(alternatives)

N channel FET

N channel
Field Effect Transistor
(alternatives)

Zener diode

Zener diode

Thyristor or SCR

Thyristor or SCR

Triac

Triac

Thermistor

Thermistor

Switch

Switch

Fuse

Fuse

Microphone

Microphone

Speaker

Speaker

Lamp

Lamp

Single cell

Single cell

Battery

Battery

Variable resistor

Variable resistor

All text and images on this site are Copyright to John Langsford (vk5ajl).
You may provide links on other sites or use the information and pictures for your own personal use.
You may use the text or images for redisplay or quotation provided you acknowledge the source ie. vk5ajl.com.
I think that's pretty fair, don't you?