Join Date: May 2005
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Re: Electrical oddity solved
The power was on when I cut the wires. If I accidentally shorted the wires with my dikes then I would have blown the fuse.
I said the LED lights were on very dim, the fans would not run and the halogen light didn’t work at all. That tells you that the problem is a very low source of current and also that it is likely AC.
Why low current? Because the Halogen did not even begin to heat up.
Why AC? Because it is likely being rectified over the diodes in the lamps. Could be wrong, been a lot time since I did bench work.
In any case since I replaced the fuse everything is working OK.
When I take the fuse out then the lamps no longer work. No even dimly. NADA. So I am suspecting that what ever the source of AC was is now off.
Why did I post this? Because I was surprised by the symptoms and thought it might be interesting to share. Maybe someone else has seen something similar or has a different theory.
I was certified as a bench electronics technician in 1973 but it’s been a looong time since I’ve done real electronics work.
With today’s electronic volt meters it is very common, almost normal, to see stray voltage on wires that are not connected. Back in the day when a Simpson 260 was the go to industry standard meter, it would apply some resistance across the circuit, 20,000 ohms/volt, for what ever scale you were using. This “short” was generally enough to “quiet” these minuscule voltages. Today’s meters have vastly higher ratings, but then you see these voltages and they can confuse you. It’s almost better to use an dl cheap movement type for this reason. So I’m far from suprised to see some voltage on a “dead” line, I was surprised it was enough to get some light out of an LED.
If nothing else it’s an interesting story.
33' Brewer, Murray 33, steel cutter
44' Pape, Steelmaid, cc steel cutter
Last edited by hpeer; 12-10-2019 at 08:51 AM.