Ham Radio Schematic Symbols 5w5117

Ham Radio Schematic Symbols

Component

Symbol

Component

Antenna

Relay

Battery

Relay s

Bulb (indicator lamp)

Resistor

Capacitor

Resistor (Tapped)

Capacitor (Electrolytic)

Resistor (Variable, Potentiometer)

Capacitor (Trimmer)

Silicon Controlled Rectifier (SCR)

Capacitor (Variable)

Speaker

Coil (Inductor)

Switch (SPST)

Connection (Chassis)

Switch (Push Button)

Connection (Wires)

Switch (Rotary)

No-Connection (Wires)

Switch (SPDT)

Crystal (Frequency)

Thermistor

Diode

Transformer (Iron Core)

Diode (Shottky)

Transformer (IF)

Symbol

Field Effect Transistor (FET) (N-Channel)

Transistor (NPN Bipolar)

Field Effect Transistor (FET) (P-Channel)

Transistor (PNP Bipolar)

Fuse

Vacuum Tube (Diode)

Ground Connection

Vacuum Tube (Triode)

Inductor

Vacuum Tube (Tetrode)

Inductor (Iron Core)

Vacuum Tube (Pentode)

Inductor (Variable)

Unijunction Transistor

-or-

Light Emitting Diode (LED)

Varactor

Microphone

Voltmeter

Motor (Electric)

Zener Diode

Phone Jack

Headphones

Photo Cell

Coax or Shielded Cable

Note: Standard orientation of symbols is for inputs to be on left or top and outputs on right or bottom.