Discovery Telecom MINDBLOWN Manuel d'instructions - Page 8

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Introducing the Touch Plate

4-10 • 9-20 • 19-23 • 24-3

water onto the Touch Pad (see page 3). The LED will glow dimly.

Water has a large resistance so only a little electricity will pass

through the water and get to the LED. Mix a little salt and water

and repeat the experiment. The LED will glow brighter, showing

that saltwater has a lower resistance.

Connecting Four LEDs in Parallel with a Single Switch

4-6-8-10-12 • 11-9-7-5-23 • 24-3

Turn on the Main Switch and all four LEDs will light up. They will

Connecting LEDs in Parallel with Separate Switches

4-22-26-24 • 23-6 • 25-12-10 • 21-8

7-9-11-5-3

up when the Push Switch is depressed, and the Main Switch turns

on the Red LED. The Yellow and Green LEDs light up when the

Magnetic Rod is near the Reed Switch.

Connecting Two 3V LEDs in Series

4-13 • 14-8-26 • 25-22-7-10 • 9-21-23

24-3

The LEDs will not light up when you turn on the Main Switch. This is

bec

series. Activating the reed switch creates a new path, bypassing the

Blue LED so the Yellow one lights up. Moving the Magnetic Rod away

to open the Reed Switch and pressing the Push Switch allows the

Alternating LEDs with Two Switches

4-23 • 24-21-12 • 11-22-14-6 • 5-13-3

Turn on the Main Switch and the Green LED lights up, but the red

one does not. Press the Push Switch and the Red LED turns on

CIRCUITRY KEYBOARD

100

ELECTRONIC CIRCUIT EXPERIMENT KIT

100