[i=s]This post was last edited by littleshrimp on 2018-3-24 23:24[/i] Most of the door magnetic alarms I have come into contact with before are like this one below. There is a reed switch in the host,
Chongqing Chuanyi Analyzer Level Meter Branch Company has successfully completed the development of a water quality and soda sampling integrated system recently, further improving the branch's core co
The marking on the tube is as shown below. The test is a p-channel MOSFET, but we have used many tubes in the experiment and none of them worked. Does any expert know the specific model or can use a s