2024 STEM Catalog

LED Robot Blinker 390338 ELENCO Learn about free-running oscillators. You'll have fun building, displaying and learning about the LED Robot Blinker. Requires 9V battery, sold separately. Soldering required. AM/FM Radio Kit 390444 ELENCO Kit is a "superheterodyne" receiver of the standard AM (amplitude modula�on) and FM (frequency modula�on) broadcast frequencies.

Digital Clock Kit 392030 ELECTRONIX EXPRESS Let this colorful "electronic brain" make all of your important decisions for you, it then displays the results to your ques�ons using a variety of LEDs. This kit uses a 2 IC circuit and a

label you glue onto the PC board. Lots of fun to use and easy to build. Includes parts, label, PC board and instruc�ons. Requires 9V battery, sold separately.

Flashing LED Soldering Kit 949099 VELLEMAN

Show your love in an original way that your heart s�ll beats faster for him or her. 28 LEDs form 2 blinking hearts.

Includes radio moun�ng stand and 64 page manual. Requires 9V battery, sold separately.

Requires 9V battery, sold separately.

Complete Solder Starter Kit 392020 RSR Perfect for beginning solder class.

Roule�e Solder Kit 488610 VELLEMAN 37 LEDs spin between games. Spinning sound and "winner"-tune for each color. Push-bu�on opera�on and microprocessor technology. Requires 3 AA batteries, sold separately. Hourglass DIY Soldering Kit 615708 OSEPP Learn to solder with easy-to-follow instruc�ons

Includes solder, soldering iron, solder stand and sponge, diagonal cu�er, plus 2 solder project kits. Flashing LEDs 949100 VELLEMAN Produces adjustable flashing speed with 2 poten�ometers. Includes all electronic parts needed for assembling a circuit. Deluxe Decision Maker Soldering Kit CHANEY 300960 Let this colorful "electronic brain" make all of your important decisions for you, it then displays the results to your ques�ons using a variety of LEDs. This kit uses a 2 IC circuit and a

and a 'how to solder and desolder' guide. Includes 42 LEDs, 2 mini push bu�ons, 2 pin headers, 2 female headers, 10 resistors, buzzer, �lt sensor, on/off switch, integrated circuit, 4 ba�ery clips, capacitor and desoldering braid. Requires 2 AAA batteries, sold separately.

Requires 9V battery, sold separately.

Spinning Wheel Soldering Kit 949130 VELLEMAN

label you glue onto the PC board. Lots of fun to use and easy to build. Includes parts, label, PC board and instruc�ons. Requires 9V battery, sold separately.

10-LED spinning wheel. Push the bu�on to start spinning ac�on, speed gradually decreases and finally it stops and one LED remains lit.

Traffic Light 949117 VELLEMAN Miniature traffic light as used at 4-way junc�ons. Realis�c opera�on with adjustable delay. 12 LEDs. Includes parts and manual. Requires 9V battery, sold separately.

Requires 9V battery, sold separately.

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