Posts Tagged ‘diy’

www.educationaltoysclub.com This is educational toys for student to learn the electronic basic and it can let the student to use their hands to practise soldering. This is a useful electronic kits I showing to you.

Ok makers! We’re going to kick off some holiday gift guide action for 2008! First up – and under ELECTRONICS KITS, we know holiday gift budgets are shrinking – a lot of us will have more time than money next year, so more than ever – if you’re going to spend your hard earned cash consider spending it on something that gives back. A kit to learn about electronics, a book to savor and pass along to someone else, a tool you know you’ll use for years, something that you know you’ll use – something to learn with, something you can give to someone else later. Read on for the complete list!

www.educationaltoysclub.com Brown, red, orange, yellow, green, blue and purple, flashing seven colors can improve students interests in study of electronics technology and help them comprehend the fast development in the science field. #This circuit uses one NPN transistor, two PNP transistors, resistors and capacitors to form a three phases multivibrator. When the circuit is operating, NPN transistor is off while PNP transistors are on and. R1, R3, R5 and C1, C2, C3 determine speed of cycling. This circuit uses three colors LED. When G or R conducts, LED shows green or red color. When G and R conduct at the same time, LED shows orange color. Therefore, LED lights up as a sequence that is red, green, orange. This circuit operates at 6V. It requires four 1.5V batteries.

Funny light control stretch spot moving experiment is specially designed for extra-curriculum. It can be applied to all kinds of ornaments and just needs a little bit alteration. #This circuit uses time base circuit NE555 and decade counter IC MC14017 and 18 Light Emitting Diodes. When LED1~LED18 are working, it will be flashing from middle to two Sides. This circuit needs 9V to operate. It requires one 9V battery.

This circuit uses relay with a buzzer. The intermittent current beats speaker through electrolytic capacitor C. If you finish this circuit and check it right, turn power on, and then you will hear the sound from speaker. Fix the switch on the gate and this is an easy doorbell. The circuit works at 6V. It requires four 1.5V batteries.