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Phasor and time-domain waveforms online

Phasor representatives of steady state AC signals are very practical for calculating both amplitude and phase of AC sig...
0 comments posted 13yrs
posted by pchung705
0 comments posted 13yrs posted by pchung705

ARC fault breakers

I know they are now code for most rooms in a house. Is it a good idea to replace the "regular" circuit breakers in my h...
7 comments posted 13yrs
posted by stryped1
7 comments posted 13yrs posted by stryped1

Wall oven junction box

I am replacing my wife's wall oven with the same size oven. (24 inch). The old oven has been there for at least 12 year...
15 comments posted 13yrs
posted by stryped1
15 comments posted 13yrs posted by stryped1

Pool Heater Nuisance Tripping

I have a pool water tankless instant heater that has two elements, each fed by a 220v 40amp double breaker. When I meas...
15 comments posted 13yrs
posted by streetsj.no.spam
15 comments posted 13yrs posted by streetsj.no.spam

Electrical outlet question

I need to add a gfi outlet to my wifes bathroom. I want to add it to the cu rrent light switch box. This box currently...
5 comments posted 13yrs
posted by stryped1
5 comments posted 13yrs posted by stryped1

A new way to display your Excel calculations

Hi, I would like to share with you a new handy Excel add-in that transforms for mulas into easy-to-read graphical image...
0 comments posted 13yrs
posted by jmari0818
0 comments posted 13yrs posted by jmari0818

Ground?

This is a segment of a schematic of a Yamaha receiver: http://www.tinyuploads.com/images/8LzeOF.jpg My question is abou...
3 comments posted 13yrs
posted by invalid
3 comments posted 13yrs posted by invalid

Lilfe in the slow (repair) lane.

I need a rant... Is hardware becoming more complicated, users becoming more clueless, or both. I get a panic call from...
18 comments posted 13yrs
posted by jeffl
18 comments posted 13yrs posted by jeffl

Dimming low power light bulbs

I know one can dim filament bulbs with triacs (or similar). I think I know that one used not to be able to dim fluoresc...
2 comments posted 13yrs
posted by freddywilliams
2 comments posted 13yrs posted by freddywilliams

Charge gel cell with car charger?

A friend has a battery powered Ryobi lawn trimmer ("weed whacker") which doesn't work. The 12vdc wall wart puts out onl...
32 comments posted 13yrs
posted by mcham
32 comments posted 13yrs posted by mcham

Crystal load?

I'm ordering a 2-pin crystal (8.86723 MHz) and need to specify the load. A little help calculating this, please? http://...
41 comments posted 13yrs
posted by invalid
41 comments posted 13yrs posted by invalid

PCB prototyping "short film"

That's me! http://www.youtube.com/watch?v=N6YoH88CDRo
0 comments posted 13yrs
posted by sstafford0707
0 comments posted 13yrs posted by sstafford0707