We’ve covered these CNC 3020’s in the past. They are physically solid machines but the electronics offer some room for improvement. [Peter] is certainly no novice at working on these machines. He’s ...

I was repairing a power supply for a Cisco router today, and I noticed that each rail (+5V, +12V, and -12V) was connected to a small 8-pin chip, which seemed to have three connections: A power in side ...

Sometimes connectivity problems go away by power cycling a router. It’s a simple but inconvenient solution to a problem that shouldn’t exist, but that didn’t stop [Mike Diamond] from automating it for ...

Protect your devices with effective surge protection and power outage safety tips. Learn practical electronics protection ...

eurodk buy CRS305-1G-4S + IN at. The outer box looks like this. Contents are CRS305-1G-4S+IN main body, AC adapter, instruction manual. The appearance of the main body looks like this. Since it is a ...