Save with this pack of 10 buzzers. 3 Volts DC 400Hz. Great for Morse code circuits.
Works on 3 V DC (any 2 AA batteries in series will do.)
Create your own circuits or test batteries and solar cells with this buzzer. Connect it to a battery and a key switch to make your own Morse code circuit.
A cool kit that helps you build your very own robotic arm!
Build 20 different solar powered models with unique building pieces, controlled by an RC handset!
This superb chemistry set features 350 mind-boggling experiments!
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale with up to 350,000 volts!
The Hoberman Sphere expands and contracts with a magical motion so fluid and simple that kids can't help but play with it for hours.