60-In-One Block-Type  (280-0147)       Features        Faxback Doc. # 15472
Electronic Lab

The Radio Shack 60-in-One Block-Type Electronic Lab lets you complete 60
fun and interesting experiments using the provided blocks and parts.
Unlike other electronic kits, you do not need to wire or solder components,
you simply follow the instructions and arrange the blocks.  You create
radios, test equipment, lie detectors, telegraphs, and other interesting
devices.  As you do the experiments, you will learn about the principles of
electronics.

Before you begin the experiments, please be sure to read all of the
introductory sections.  These sections have important safety information
and explain the terms and provide the instructions you need to get started.

We recommend that you try the experiments in the order they appear in this
manual because each one builds on something you learned in an earlier
experiment.

When you are ready to begin experimenting, first read the complete
instructions for each experiment, and then follow them carefully.  If you
do not build an experiment correctly, you might damage the blocks.

NOTE:  You need four AA batteries to power the kit.  We recommend alkaline
       batteries, such as Radio Shack Cat. No. 23-552.

IMPORTANT:  For your safety, this kit's only power source is the batteries.
            NEVER PLUG THE ANTENNA WIRE, TEST, OR EARPHONE PADDLE LEADS
            INTO AN AC OUTLET OR TRY TO POWER THE KIT FROM AN AC OUTLET. 
            This is extremely dangerous and can cause electric shock.

PARTS IDENTIFICATION

    Power switch - switches power on/off from the batteries to the blocks.

     Tuning dial - lets you tune to radio stations in radio experiments. 
                   Also acts as a variable capacitor in some experiments.

          +B PWR - location where you connect the circuit to the power
                   supply's + terminal.

          Volume - controls the speaker volume in IC amplifier experiments. 
                   Turn the dial toward MIN to decrease the volume and
                   toward MAX to increase the volume.  Also acts as a
                   variable resistor.

Built-in speaker - lets you hear the sound in IC amplifier experiments.
                   If you look through the vent on the back of the kit,
                   you can see where the IC (Integrated Circuit) chip is
                   connected to the speaker.

          +A PWR - location where you connect the circuit to the power
                   supply's + terminal.

             GND - location where you connect the circuit to the
                   power supply's negative (-) terminal.


(TE/all-06/01/95)