Re: Old Iron (engine generator)
- From: Jim Stewart <jstewart@xxxxxxxxxxx>
- Date: Thu, 31 Aug 2006 12:07:43 -0700
Christopher Tidy wrote:
Ignoramus20617 wrote:
On Thu, 31 Aug 2006 11:34:06 GMT, Lloyd E. Sponenburgh <lloydsp@xxxxxxxxxxxxxx> wrote:
heat-strip insert -- a 230V, 4800watt resistance heater.
Last night, I fired up the genny for a warmup, because the remants of Ernesto were headed for us. This time, I plugged the heat strips in for a test load. My expectation was that the field would quench, but I wanted to see, anyway.
Damned if the 44 year old Dayton didn't just lean into that load like a mule to a plow! It RAN the coil, and the output only dropped to about 205v! Daggone! It's just a 3500 watt unit!
Let's see one of the new "peak rated" gennies do THAT! <G<G>G>
I LOVE old iron!
So do I. The good old times, when things were "conservatively rated".
Another old iron fan here!
By the way, talking about misleading marketing, did anyone ever understand the term "watts PMPO" and its relationship to watts RMS when talking about speakers?
Sure. Hook up some 4 ohm speakers, crank up
the volume to eleven, play a snare drum hit,
measure the peak voltage across the speaker,
square it and divide by 4. Peak music power.
At some point, the mid-level amp builders would
quote the peak music power at some large
level of distortion, which would mean turning
the amp to nine instead of eleven (:
The relationship to RMS would be highly
dependent on the size of the power supply
filter caps and the current rating of the
power transformer.
For a quality amp, I would suspect that the
RMS rating would be the intuitive value of
peak * .707, at least until thermal issues
started to appear. For the cheap amps, all
bets are off.
.
- References:
- Old Iron (engine generator)
- From: Lloyd E. Sponenburgh
- Re: Old Iron (engine generator)
- From: Ignoramus20617
- Re: Old Iron (engine generator)
- From: Christopher Tidy
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