A large block of carbon crystal with plates on the outside.
Compression of the plates changes the resistance.

Used them in lab experiments. 200 amp switcher supplies.

Martin

On 1/13/2013 2:40 PM, Transition Zone wrote:
On Jan 12, 5:10 pm, "Existential Angst" wrote:
Awl --

In a portable generator.

Does one type of load vs the other make it more difficult for a typical
portable generator to maintain constant voltage?
Esp at a current approaching the continuous current limit of the generator.

I ask bec the mfr claims 1-2% regulation. A small miller welder is causing
12%+ variation, within the current limitations, with the voltage variation
being fairly proportional to load. I'm assuming a transformer load is
substantially inductive?

I haven't yet tested it with purely resistive loads, cuz, well,

PURELY resistive? Where in the heck would you find a PURELY RESISTIVE
load?