Circuit Elements

 

Battery

Resistor

Light Emitting Diode (LED)

red wire

black wire




long lead

short lead

+

-

anode

cathode





+

-

 

 

 

 

 

 

Capacitor

Zener Diode

555 Timer

long lead

short lead

no stripe

stripe

no stripe

stripe

anode

cathode

+

-

+

-

 

 

 

 

Light Emitting Diode (LED) Circuit

 

 

 

 

 

Voltage Regulator Circuit

 

 


 

555 Timer Circuit

 


 

 

 

7493 Counter Circuit