transistorsx
FETx
diodesx

Diodes:-  Current flows in one direction    Back emf protection

LED’s with series resistors.

Transistors:- Bipolar (npn)    Darlington pair    Field Effect (FET)    Used as switches

Thyristors:- Used as a latch.

 
Picture 231 Symbol of Diode Picture 232 Symbol of Thyristor
Diode
 		 Thyristor
 
Picture 233 Symbol of npn Transistor Picture 234 Symbol of JFET Picture 235 Symbol of MOSFET
npn Transistor JFET MOSFET
1. 3 Red Stars Diodes, Led's, Rectifiers, Regulators. 4/12/02
Detailed explanation of Diodes, LED's, Rectifiers, Regulators.
2. 2 Red Star BBC Bitesize -- Transistors. 27/6/05
Transistors, FET's and Relays.
Issue 30 - 20/2/02
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