FastTrack
"Process"
Devices
(Scroll down for circuits)

NPN
type
Transistor

Low Power
Electronic Switch to enable current to flow through the output(s)
.
Circuit Diagram


Darlington
Pair

Sensitive
Electronic Switch to enable higher currents to flow through the output(s).
Circuit Diagram
.

Thyristor
(SCR)

An Electronic Latch will remain switched on so current can continue to flow through the output(s) until it is reset.
Circuit Diagram
.

PIC Programmable Microcontroller

(Powered by 9 volt d.c.)
Circuit Diagram
.

Darlington
Pair +
Capacitor /
Resistor

Delaying the switching on of an output
Circuit Diagram
.

Transistor
+ Capacitor

Temporary Latch
holding an output on
for a short time
Circuit Diagram
.

Darlington
Pair +
Capacitor

Temporary Latch
holding an output on
for a chosen time
Circuit Diagram