Data Sheet

-18-
1. Closed Circuit
E-Blox
®
Circuit Blox™ uses electronic blocks that plug into a
clear plastic grid to build different circuits. These blocks have
different colors and numbers on them so that you can easily
identify them.
Build the circuit shown on the left by placing all the parts
that plug into the rst layer base. Then, assemble the parts
that connect to the secondary layer. Install three (3) “AA”
batteries (not included) into the battery holder (91). Secure
the battery cover before using it.
Pressing the switch (62) creates a closed circuit; the lamp
(76) will turn on. Press it again to open the circuit and the
lamp (76) will turn off.
2. LED, the Check Valve Light
Replace the lamp (76) with the LED (69), making sure it’s in the
correct direction. Press the switch (62) to turn it ON and OFF.
Reverse the LED (69) and repeat. Notice that the LED does not
light when in the circuit in the reverse direction, demonstrating
how LEDs only allow current to ow in one direction.
3. Magnetic Switch
Build the circuit on the left. Put the magnet (7) near the reed
switch (83) and the lamp (76) will turn on. Move the magnet (7)
away and the lamp (76) will turn off. This is a “no touch” switch!
4. Alarm Switches
Replace the lamp (76) with the LED (69), making sure it’s in
the correct direction. Put the magnet (7) near the reed switch
(83) and the LED (69) will turn on. Move the magnet (7) away
and the LED (69) will turn off. House alarms sometimes use
reed switches to detect when a door or window is open.