What is the priciple of the digital tube?
On 2019-01-22 16:49:17 in Photoelectric
This article describes the basic principles of the digital tube ...
What is an buzzer and speaker?
On 2019-01-21 16:58:01 in Generally electronic component
This article describes the buzzer and speaker. ...
Common switch and automatic switch: relay
On 2019-01-21 16:53:38 in Generally electronic component
This article briefly introduces the common switch and automatic switch: relay ...
What is a triode and how to identify its pin?
On 2019-01-21 16:50:52 in Knownlege
This article describes what is a triode and how to identify its pin ...
How to make a fast battery charger?
On 2019-01-21 16:38:37 in Technology
This article describes how to make a fast battery charger ...