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Hakko 472 component values?

Have a 473 (uses shop air to create vacuum via venturi) and would like to retrofit internal vacuum pump to make it esse...
7 comments posted 15yrs
posted by invalid
7 comments posted 15yrs posted by invalid

What is this capacitor?

Has anyone seen a capacitor like K33 in this picture? It appears to be electrolytic, but I have never seen one of this...
4 comments posted 15yrs
posted by overhaul
4 comments posted 15yrs posted by overhaul

vacuum question...

What would the moistue content be inside a cylinder where a vacuum is pulled 25-30HG? Could such a cylinder be used to "...
11 comments posted 15yrs
posted by stryped1
11 comments posted 15yrs posted by stryped1

generator circuit

Hi, I just completed wiring and testing my circuit. * no backfeed from the generator into the grid * generator is disco...
6 comments posted 15yrs
posted by jon8338
6 comments posted 15yrs posted by jon8338

No Respectable E.E. uses this group..at all.

I am relinquishing my controls blocking the infernal Proteus machine., I have been notified it is resuming it's normal...
0 comments posted 15yrs
posted by proteusiiv
0 comments posted 15yrs posted by proteusiiv

Voltages used in "neighborhood" power distribution

Hi: Does anyone here know the voltages used in typical surburban sub-division power distribution where you have transfo...
53 comments posted 15yrs
posted by jlgilmer
53 comments posted 15yrs posted by jlgilmer

New Engineering Website

New website designed for collaboration of scientists and engineers. To share and assist with technical issues, as well a...
0 comments posted 15yrs
posted by jpetrillo13
0 comments posted 15yrs posted by jpetrillo13

grounding question

Hi, I remember some electrical principles from school, but I'm fairly new to practical (hobby) electronics. Some of the...
18 comments posted 15yrs
posted by patrol_boat
18 comments posted 15yrs posted by patrol_boat

What it this: Outside Telco "Cable"

Hi: Seems that everywhere I look in our semi-rural county I see these aerael cables. They are suspected from a steel ca...
4 comments posted 15yrs
posted by jlgilmer
4 comments posted 15yrs posted by jlgilmer

Electromagnetic Motor

Electromagnetic Motor Many many years ago in a Boys Own Annual 19xx vintage there was info on Building a Electromagneti...
18 comments posted 15yrs
posted by wbrown
18 comments posted 15yrs posted by wbrown

Mains wiring question (USA)

A 1-story, flat-roof house (no basement) in California is going to be re-covered, so it's a prime time to do some elect...
40 comments posted 15yrs
posted by bespoke
40 comments posted 15yrs posted by bespoke

Generator Hassles

The electrical service goes to the house. There are 3 underground 000 cables that go to the barn from the house. The ba...
15 comments posted 15yrs
posted by jon8338
15 comments posted 15yrs posted by jon8338

Nikola Tesla

Did any of you guys learn about Tesla in high school? I took two years of Electrical construction and maintenance after...
56 comments posted 15yrs
posted by kilowatt
56 comments posted 15yrs posted by kilowatt

Structured wiring: fiber optic or not?

A friend is having a new roof put on his his 50-year-old, flat-roof home. This provides access to all kinds of new wiri...
43 comments posted 15yrs
posted by bespoke
43 comments posted 15yrs posted by bespoke