Anyone know a simple and cheap solar panel setup to run a small boombox about 9-12V DC? [more inside]
posted on Dec 4, 2007 - 3 answers

Is it possible that I've permanently destroyed my record player by accidentally hooking up to a 15 volt power adapter, instead of a 12? [more inside]
posted on Mar 17, 2007 - 12 answers

Where can I buy that special connector plug (just the plug itself not the entire adapter) for an IBM/Lenovo t60 laptop? [more inside]
posted on Mar 16, 2007 - 5 answers

Electronics filter: What can I do to make a 24v PSU turn into a 18-19v PSU? It's 0.5A power supply which as far as I can tell is important to know when using, say a resistor to lower voltage. But how resistant should the resistor be? I've found information on how to tell a resistor's value, but not how it will actually effect a line's voltage or how to calculate it. Are there any good sites with this information? Also what will happen to the amount of amps the PSU supplies when I do change it to 18/19v?? Also, what can be done to increase the amperage of a power supply? What inside the circutry is actually dictating the amperage?
posted on Dec 3, 2006 - 25 answers

Instead of powering a device with 2 AA batteries, I'm interested in creating something that would allow it to draw power via USB. Is this possible? [more inside]
posted on Nov 30, 2006 - 17 answers

I got into a debate the other day with my boss, who is absolutely anal-retentive about everything power related (to the point where he scolds me for leaving fluorescent lights turned on if I'm not using the room). [more inside]
posted on Nov 11, 2006 - 17 answers

Can I safely use a 5V 2.1A power adapter for a device (Linksys WET11 Wireless Ethernet Bridge) that expects 5V 2.0A? [more inside]
posted on Oct 21, 2006 - 3 answers

What DC to AC power inverter can I buy for use in a car that won't contribute hum to an audio signal from devices it powers? [more inside]
posted on Nov 15, 2005 - 11 answers

Amtrak question: I'm going to be travelling from NYC to Richmond (and back) on the Palmetto line and need to know if there are any outlets in the coach class seats.
posted on Oct 25, 2005 - 12 answers