How can I eliminate noise from a switched mode power supply through a laptop?
57900
Feeling a tingling sensation by touching stuff, Is this safe?
150614
How to disable a single op-amp in dual packaging?
100484
Laptop surface vibrating because of ungrounded adapter
149436
How to restrict/cut power output to a USB client?
146559
How to test a power supply?
66305
Getting rid of AC/DC adapters
67534
What is / how can I get a student-safe power supply for electronics projects?
107150
How to prevent DC motor from dropping voltage of supply when switching on
130127
Shortcut to switch  between Analog Stereo output & HDMI audio output
62968
OR-ing power supplies (diode or mosfet)
77248
How to scale and shift voltage signal?
130739
how do I make my computer only play through my speaker even if headphones are plugged in?
72633
Smoothing a Full-Wave rectifier voltage
97861
Mute sound on Headphone unplug?
138155
Where might the noise be coming from in this speaker driver circuit?
134929
What noise removal tools work best, and why?
109569
Split power supply for a multiple op amp circuit