Current direction?

[benoit]

Yeah, but I know one Moroon that flipped the layout for a tubes up build and ended up with all his tube sockets wired exactly backwards.......

Haha.. but he earned his way back out o' that dunce cap as I recall..

[jjman]

Parent always told kids that your legs will cramp if you swim soon after eating. In school they told us that touching a bird nest will make the parents stay away and the babies will die. In addition they talked about some special type of stupid theoretical water (forget the name.) They also said the greenhouse affect was based on “long” vs. “short” light waves. And they said the electron orbits the nucleus.

I always had difficulty with these theories. All but the last have been proven untrue in my life. I’ll be convinced on the orbit thing when I see a picture of it.

[WholeToneMusic]

Well The engineers will tell you current flows from + to - and the technicians will say it flows from - to + in a DC circuit. I am just grateful that it flows.

[gearhead]

Well The engineers will tell you current flows from + to - and the technicians will say it flows from - to + in a DC circuit. I am just grateful that it flows.

Actually, recently-schooled engineers will tell you that current flows one way, but electrons flow the other way; they do know the difference. Problem is that the set of standard electronic formulas (which technicians use also) are founded on the current flow convention. I too am grateful that if flows

[axx_grinder49]

This link is useful......

http://www.mi.mun.ca/users/cchaulk/eltk ... /ivse.htm#

[WholeToneMusic]

Interesting gearhead, Those electrons are mysterious buggers, I can definately feel them flowing!!!

www.whole-tonemusic.com

[VacuumVoodoo]

Imagine a long line of cars at the red light. Light changes to green - at this moment a "wake up demon" runs backwards in the line waking up drivers. Cars start to move forward (the electrons) one by one but the "wake up demon ie current" runs in opposite direction and much faster than the cars.

Electron flow vs current flow confusion: current is an attribute of electron flow not a separate phenomenon.

[mooreamps]

I don't know why some engineering texts are written in this manner. It was a cause of some debate when I was in school. The real answer is probably, it's only academic. If you look at current flow inside a PN junction, one can postuate hole movement in direction is an indication of electron movement in the other direction. However, in a vacuum tube circuit, how can one speckulate hole movement from plate to grid ?
-g