Structure and characteristics
On 2018-11-01 16:47:41 in Memory
LED digital tube also known as semiconductor digital tube ( Figure 1-1-5 ),it is a number of light-emitting diodes arranged in a fixed pattern and packaged together the most commonly used digital display one of the devices ...
The main parameters of the first,triode
On 2018-11-01 14:25:02 in Memory
The current amplification factor is the current magnification,which is used to indicate the amplifying power of the transistor.According to the working state of the triode ...
Electret capacitive microphone
On 2018-11-01 14:19:07 in Relays
To measure the secondary coil of the output transformer,it can be measured directly with the two surface pen to check the output end of the city ...
The type and technical index of the moving-coil microphone
On 2018-11-01 14:13:26 in Generally electronic component
The type and detection method of microphone is a device that converts sound energy into an audio Telecom number,also called a microphone ...
Double wave soldering process
On 2018-11-01 14:10:13 in Generally electronic semiconductor
Application range of double wave soldering.Usually single wave soldering can not be competent for the welding of double-sided sticker printed circuit board ...