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Tree Green Energy Egg

Has anyone had experience with using the Energy Egg? Blair
0 comments posted 15yrs
posted by Darrach
0 comments posted 15yrs posted by Darrach

city vs private sector

Okay guys.. I need some advice from experts.. :-) I have an offer from the Fire Dept as an assistant electrical enginee...
1 comments posted 15yrs
posted by mr.carlos.cifuentes
1 comments posted 15yrs posted by mr.carlos.cifuentes

Pin type insulator threads

Specifically those old style glass telegraph line type insulators. The threads they fit on (usually on wood pins back i...
2 comments posted 15yrs
posted by paul
2 comments posted 15yrs posted by paul

UPS serial port communication

I hope this group is somewhat appropriate. I didn't find a better group for this question. We just got an APC UPS (Smar...
2 comments posted 15yrs
posted by anonymous
2 comments posted 15yrs posted by anonymous

One Motion Sensor Light Turns On Other Lights

I had a situation the other day where three motion sensor lights were all wired to the same circuit, and when one light...
4 comments posted 15yrs
posted by persistentone
4 comments posted 15yrs posted by persistentone

Laptop Power Bricks and Grounding (Earthing)

I hope this is the right group for this question. On my Apple MagSafe AC adapter, it can take 100 to 240v AC 50/60 cycl...
16 comments posted 15yrs
posted by justin
16 comments posted 15yrs posted by justin

Need to generate a TTL signal from a footswitch

I have an optical shutter controller which drives a shutter using either a TTL-level pulse or a footswitch. Unfortunate...
4 comments posted 15yrs
posted by mgklein
4 comments posted 15yrs posted by mgklein

inductive sensing relay ?

Looking to have a relay close when current passes through a wire that I'm NOT allowed to cut into, or probe. Basically...
19 comments posted 15yrs
posted by hooper1
19 comments posted 15yrs posted by hooper1

IDC 40-pin connector for 80-conductor cable?

Looking for IDC male connector, 40-pin for 80-conductor ribbon cable. This is used on IDE hard drives. Or an 80-conduct...
21 comments posted 15yrs
posted by invalid
21 comments posted 15yrs posted by invalid

aluminium gland plates

do aluminium gland plates need to be slotted
0 comments posted 15yrs
posted by claymiller
0 comments posted 15yrs posted by claymiller

Supercaps and ESR

Trying to find a replacement for a 1F/2.5V supercap. Original: I can find local replacements rated 1F/5V but the ESR is...
11 comments posted 15yrs
posted by invalid
11 comments posted 15yrs posted by invalid

Temporary power generation

Following a local cut in supply, UK Power Networks installed a temporary generator (about half the size of a large cont...
5 comments posted 15yrs
posted by jmlayman
5 comments posted 15yrs posted by jmlayman